Healthcare Allocation Lab

Latest Publications

Development of a risk score predicting survival after adult heart transplantation in the United States

"In this registry-based study of US adult heart transplant recipients, a multivariable risk score outperformed existing models in predicting 1-year post-transplant survival and may be useful for integrating post-transplant survival into the upcoming continuous distribution framework." (Lazenby et al., 2025).

Association of the 2018 U.S. Heart Allocation Policy Change and the Survival Benefit of Heart Transplantation

“The 2018 heart allocation policy change has led to better stratification and prioritization of candidates by clinical acuity, resulting in higher survival benefit of transplantation performed. Combined with higher transplantation rates, the 2018 heart allocation policy has saved thousands of life-years and achieved one of its major goals” (Tolmie et al., 2025).

A common longitudinal intensive care unit data format (CLIF) for critical illness research

"CLIF enables transparent, efficient, and reproducible critical care research across diverse health systems. Our federated case studies showcase CLIF's potential for disease sub-phenotyping and clinical decision-support evaluation. Future applications include pragmatic EHR-based trials, target trial emulations, foundational artificial intelligence (AI) models of critical illness, and real-time critical care quality dashboards" (Rojas et al., 2025).

Scholarship

Peer-reviewed publications in the primary literature, exclusive of abstracts: 

  1. Ross LF, Parker WF, Veatch RM, Gentry SE, Thistlethwaite JR. 2012. Equal opportunity supplemented by fair innings: equity and efficiency in allocating deceased donor kidneys. AJT. 12(8):2115-24. doi: 10.1111/j.1600-6143.2012.04141.x
  2. Roll GR, Parekh JR, Parker WF, Siegler M, Pomfret EA, Ascher NL, Roberts JP. 2013. Left hepatectomy versus right hepatectomy for living donor liver transplantation: shifting the risk from the donor to the recipient. Liver Transpl. 19(5):472-8. doi: 10.1002/lt.23608
  3. Parker WF, Thistlethwaite JR, Ross LF.  2016. Kidney Donor Profile Index does not accurately predict the performance of kidney transplants from pediatric donors. Transplantation. 100(11):2471-2478. doi: 10.1097/TP.0000000000001028
  4. Parker WF, Garrity ER Jr, Fedson S, Churpek MM. 2017. Potential impact of a shock requirement on adult heart allocation. J Heart Lung Transplant. 36(9):1013-1016. doi: 10.1016/j.healun.2017.05.015
  5. Parker WF, Garrity ER Jr, Fedson S, Churpek MM. 2017. Trends in the use of inotropes to list adult heart transplant candidates at Status 1A. Circ Heart Fail. 10(12):e004483. doi: 10.1161/CIRCHEARTFAILURE.117.004483
  6. Parker WF, Ross LF, Thistlethwaite JR, Gallo AE. 2018. Impact of the Kidney Allocation System on young pediatric recipients. Clin Transplant. 32(4):e13223. doi: 10.1111/ctr.13223
  7. Parker WF, Anderson AS, Hedeker D, Huang ES, Garrity ER Jr, Siegler M, Churpek MM. 2018. Geographic Variation in the treatment of US adult heart transplant candidates. J Am Coll Cardiol. 71(16):1715-1725. doi: 10.1016/j.jacc.2018.02.030
  8. Parker WF, Gorges R, Gao YN, Zhang Y, Hur K, Gibbons RDD. 2018. Association between groundwater lithium and the diagnosis of bipolar disorder and dementia in the United States. JAMA Psychiatry. 75(7):751-754. doi: 10.1001/jamapsychiatry.2018.1020
  9. Piscitello G, Parham W, Huber MT, Siegler M, Parker WF. 2019. The timing of family meetings in the medical Intensive Care Unit. Am J Hosp Palliat Care. 36(12):1049-1056. doi: 10.1177/1049909119843133
  10. Parker WF, Anderson AS, Gibbons RD, Huang ES, Garrity ER, Ross LF, Churpek MM. 2019. Association of transplant center with survival benefit among adults undergoing heart transplantation in the United States. JAMA. 322(18):1789-1798. doi: 10.1001/jama.2019.15686
  11. Espinosa M, Tannenbaum A, Kilaru M, Stevens J, Siegler M, Howell M, Parker WF. 2020. Bundled consent in US Intensive Care Units. Am J Crit Care. 29(3):e44-e51. doi: 10.4037/ajcc2020502
  12. Parker WF, Chin MH. 2020. Epistemic authority and trust in shared decision making about organ transplantation. AMA J Ethics. 22(5):E408-415. doi: 10.1001/amajethics.2020.408
  13. Parker WF, Chung, K, Anderson A, Siegler M, Huang ES, Churpek MM. 2020. Practice changes at U.S. transplant centers after the new adult heart allocation policy. J Am Coll Cardiol. 75(23):2906-2916. doi: 10.1016/j.jacc.2020.01.066 
  14. Piscitello MD, Kapania EM, Miller WD, Rojas JC, Siegler M, Parker WF. 2020. Variation in ventilator allocation guidelines by US state during the coronavirus disease 2019 pandemic: A systematic review. JAMA Netw Open. 3(6):e2012606. doi: 10.1001/jamanetworkopen.2020.12606
  15. Piscitello GM, Kapania EM, Kanelidis A, Siegler M, Parker WF. 2021. The use of slow codes and medically futile codes in practice. J Pain Symptom Manage. 62(2):326-335.e5. doi: 10.1016/j.jpainsymman.2020.12.001
  16. Sanchez-Pinto LN, Parker WF, Mayampurath A, Derrington S, Michelson KN. 2021. Evaluation of organ dysfunction scores for allocation of scarce resources in critically ill children and adults during a healthcare crisis. Crit Care Med. 49(2):271-281. doi: 10.1097/CCM.0000000000004774
  17. Peek ME, Russel S, Parker WF, Ansell DA, Rogers SO, Edmonds BT. 2021. COVID-19 among African Americans: An action plan for mitigating disparities. Am J Public Health. 111(2):286-292. doi: 10.2105/AJPH.2020.305990
  18. Ran G, Anderson AS, Gibbons RD, Parker WF. 2021. Between-center variation in high-priority listing status under the new heart allocation policy. Am J Transplant. 21(11):3684-3693. doi: 10.1111/ajt.16614
  19. Churpek MM, Gupta S, Spicer AC, Parker WF, Fahrenbach J, Brenner SK, Leaf DE. 2021. Hospital-level variation in death for critically ill patients with COVID-19. Am J Respir Crit Care Med. 204(4):403–11. doi: 10.1164/rccm.202012-4547OC
  20. Miller WD, Han X, Peek ME, Ashana DC, Parker WF. 2021. Accuracy of Sequential Organ Failure Assessment (SOFA) score for in-hospital mortality by race and relevance to Crisis Standards of Care. JAMA Netw Open. 4(6):e2113891. doi: 10.1001/jamanetworkopen.2021.13891
  21. Piscitello GM, Bermea RS, Stokes JW, Gannon DW, Kanelidis AJ, Knonpka M, Shappell C, Frye LK, Lyons PG, Siegler M, Parker WF. 2022. Clinician ethical perspectives on extracorporeal membrane oxygenation in practice. Am J Hosp Palliat Care. 39(6):659-666. doi: 10.1177/10499091211041079
  22. Bhavani SV, Luo Y, Miller WD, Sanchez-Pinto LN, Han X, Mao C, Sandıkçı B, Peek ME, Coopersmith CM, Michelson KN, Parker WF. 2021. Simulation of ventilator allocation in critically ill patients with COVID-19. Am J Respir Crit Care Med. 204(10):1224-1227. doi: 10.1164/rccm.202106-1453LE
  23. Gandhi R, Piscitello GM, Parker WF, Michelson K. 2021. Variation in COVID-19 resource allocation protocols and potential implementation in the Chicago metropolitan area. AJOB Empir Bioeth. 12(4):266-275. doi: 10.1080/23294515.2021.1983667
  24. Parker WF, Dussault N, Jablonski R, Garrity ER, Churpek MM. 2022. Assessing the accuracy of the Lung Allocation Score. J Heart Lung Transplant. 41(2):217-225. doi: 10.1016/j.healun.2021.10.015
  25. Lazenby K, Ran G, Narang N, Pelzer K, Parker WF. 2022. An updated estimate of post-transplant survival in the new heart allocation policy. Am J Transplant. 22(6):1683-1690. doi: 10.1111/ajt.16931
  26. Bhavani SV, Verhoef PA, Maier CL, Robichaux C, Parker WF, Holder A, Kamaleswaran R, Wang MD, Churpek MM, Coopersmith CM. 2022. Coronavirus disease 2019 temperature trajectories correlate with hyperinflammatory and hypercoagulable subphenotypes. Crit Care Med. 50(2):212-223. doi: 10.1097/CCM.0000000000005397
  27. Zeng S, Pelzer KM, Gibbons RG, Peek ME, Parker WF. 2022. Association of zip code vaccination rate with COVID-19 mortality in Chicago, Illinois.  JAMA Netw Open. 5(5):e2214753. doi: 10.1001/jamanetworkopen.2022.14753
  28. Narang N, Thibodeau JT, Parker WF, Grodin JL, Garg S, Tedford RJ, Levine BD, McGuire DK, Drazner MH. 2022. Comparison of accuracy of estimation of cardiac output by thermodilution versus the Fick Method using measured oxygen uptake. Am J Cardiol. 176:58-65. doi: 10.1016/j.amjcard.2022.04.026
  29. Piscitello GM, Tyker A, Schenker Y, Arnold RM, Siegler M, Parker WF. 2023. Disparities in unilateral Do Not Resuscitate order use during the COVID-19 pandemic. Crit Care Med. 51(8):1012-1022. doi: 10.1097/CCM.0000000000005863
  30. Marcinak CT, Parker WF, Parikh AA, Datta J, Maithel SK, Kooby DA, Burkard ME, Kim HJ, LeCompte MT, Afshar M, Churpek MM, Zafar SN. 2023. Accuracy of models to prognosticate survival after surgery for pancreatic cancer in the era of neoadjuvant therapy. J Surg Oncol. 128(2):280-288. doi: 10.1002/jso.27287
  31. Pelzer KM, Zhang KC, Lazenby KA, Narang N, Churpek MC, Anderson AS, Parker WF. 2023. The Accuracy of initial US heart transplant candidate rankings. JACC Heart Fail. 11(5):504-512. doi: 10.1016/j.jchf.2023.02.005
  32. Johnson DY, Ahn D, Lazenby KA, Zeng S, Zhang K, Narang N, Khush, K, Parker WF. 2023. Association of high-priority exceptions with waitlist mortality among heart transplant candidates. J Heart Lung Transplant. 42(9):1175-1182. doi: 10.1016/j.healun.2023.05.009
  33. Adegunsoye A, Baccile R, Best TJ, Zaksas V, Zhang H, Karnik R, Patel BK, Solomonides AE, Parker WF, Solway J; N3C Consortium. 2023. Pharmacotherapy and pulmonary fibrosis risk after SARS-CoV-2 infection: a prospective nationwide cohort study in the United States. Lancet Reg Health Am. 25: 100566. doi: 10.1016/j.lana.2023.100566 
  34. Adegunsoye A, Baccile R, Best TJ, Zaksas V, Zhang H, Karnik R, Patel BK, Solomonides AE, Parker WF, Solway J. 2023. Pharmacotherapy and pulmonary fibrosis risk after SARS-CoV-2 infection – response to Guangting Zeng and Yuchi Zhou. Lancet Reg Health Am. 26:100611. doi: 10.1016/j.lana.2023.100611.
  35. Ahn DJ, Zeng S, Pelzer KM, Barth RN, Gallo A, Parker WF. 2023. The accuracy of non-standardized MELD/PELD score exceptions in the pediatric liver allocation system. Transplantation. 107(10):e247-e256. doi: 10.1097/TP.0000000000004720
  36. Piscitello GM, Parker WF. 2023. Do-Not-Resuscitate orders by COVID-19 status throughout the first year of the coronavirus disease 2019 pandemic. Chest. 165(3):601-609. doi: 10.1016/j.chest.2023.09.024
  37. Piscitello GM, Lyons PG, Koch VG, Parker WF, Huber M. 2024. Hospital policy variation in addressing decisions to withhold and withdraw life sustaining treatment. Chest. 165(4):950-958. doi: 10.1016/j.chest.2023.12.028
  38. Zhang KC, Narang N, Jasseron C, Dorent R, Lazenby KA, Belkin MN, Grinstein J, Mayampurath A, Churpek MM, Khush KK, Parker WF. 2024. Development and validation of a risk score predicting death without transplant in adult heart transplant candidates. JAMA. 331(6):500–509. doi: 10.1001/jama.2023.27029
  39. Zhang KC, Parker WF. 2024. Coding error in study of risk score predicting death without transplant in adult heart transplant candidates. JAMA. 332(14):1210-1211. doi: 10.1001/jama.2024.17936
  40. Ran G, Wall AE, Narang N, Khush KK, Hoffman JRH, Zhang KC, Parker WF. 2024. Post-transplant survival after normothermic regional perfusion versus direct procurement and perfusion in donation after circulatory determination of death in heart transplantation. J Heart Lung Transplant. 27:S1053-2498(24)01500-6. doi: 10.1016/j.healun.2024.02.1456
  41. Asfour N, Zhang K, Lu J, Reese P, Saunders M, Peek M, White M, Persad G, Parker WF. 2024. Association of race and ethnicity with high longevity deceased donor kidney transplantation under the US kidney allocation system. Am J Kidney Dis. doi: 10.1053/j.ajkd.2024.02.017
  42. White M, Ross L, Gallo A, Parker WF. 2024. Graft survival of en bloc deceased donor kidneys transplants compared with single kidney transplants. Transplantation. 108(10): 2127-2133. doi: 10.1097/TP.0000000000005058
  43. Lee CT, Selvan K, Adegunsoye A, Strykowski RK, Parker WF, Dignam JJ, Lauderdale DS, Strek ME, Press VG. 2024. Risk factors for hospital readmission in patients with interstitial lung disease. Respiratory Care. 69(5):586-594. doi: 10.4187/respcare.11459
  44. Buell KG, Carey KA, Dussault N, Parker WF, Dumanian J, Bhavani SV, Gilbert ER, Winslow CJ, Shah NS, Afshar M, Edelson DP, Churpek MM. 2024. Development and validation of a machine learning model for early detection of untreated infection. Crit Care Explor. 6(10):e1165. doi: 10.1097/CCE.0000000000001165
  45. Ahn DJ, Kwong AJ, Wall AE, Parker WF. 2025. Association of nonstandardized model for end-stage liver disease score exceptions with waitlist mortality in adult liver transplant candidates. Am J Transplant. Epub ahead of print. doi: 10.1016/j.ajt.2024.09.028
  46. Wall A, Du J, Snoddy M, Bayer J, Danobeitia S, Lee SH, Martinez E, Gupta A,  G, Parker WF, Asrani S, Testa G. 2025. The landscape of in situ and ex situ machine perfusion utilization for liver grafts from noncardiac donation after circulatory death donors in the early era of machine perfusion in the United States. Transplantation Direct. 11(11):p e1858. doi: 10.1097/TXD.0000000000001858
  47. Rojas J, Lyons P, Chhikara K, Chaudhari V, Bhavani S, Nour M, Buell K, Smith K, Gao C, Amagai S, Mao C, Luo Y, Barker A, Nuppnau M, Hermsen M, Koyner J, Beck H, Baccile R, Liao Z, Carey K, Park-Egan B, Han X, Hochberg C, Ingraham N, Parker WF. 2025. A Common Longitudinal Intensive Care Unit data format (CLIF) for critical illness research. Intensive Care Medicine. 51(3):556-569. doi: 10.1007/s00134-025-07869-2.
  48. Rojas JC, Lyons PG, Chhikara K, Chaudhari V, Bhavani SV, Nour M, Buell KG, Smith KD, Gao CA, Amagai S, Mao C, Luo Y, Barker AK, Nuppnau M, Hermsen M, Koyner JL, Beck H, Baccile R, Liao Z, Carey KA, Park-Egan B, Han X, Ortiz AC, Schmid BE, Weissman GE, Hochberg CH, Ingraham NE, Parker WF. 2025. Correction: A common longitudinal intensive care unit data format (CLIF) for critical illness research. Intensive Care Med. 51(4):836-839. doi: 10.1007/s00134-025-07869-2. Erratum for: Intensive Care Med. 51(3):556-569. doi: 10.1007/s00134-025-07848-7.
  49. Hermsen M, Lyons PG, Persad G, Bewley AF, Mao C, Chhikara K, Mayampurath A, Churpek M, Peek M, Luo Y, Parker WF. 2025. Age and saving lives in crisis standards of care: A multi-center cohort study of triage score prognostic accuracy. Crit Care Explor. 7(5):p e1256. doi: 10.1097/CCE.0000000000001256
  50. Tolmie SB, Gibbons RD, Anderson AS, Khush KK, Chhikara K, Churpek M, Parker WF. 2025. Association of the 2018 U.S. heart allocation policy change and the survival benefit of heart transplantation. JACC Heart Fail. 13(7):102480. doi: 10.1016/j.jchf.2025.02.026.
  51. Piscitello GM, Huber MT, Meyer L, Lyons PG, Parker WF, DeMartino ES. 2025. US state statutes addressing unilateral clinician decisions about life-sustaining treatment. JAMA Health Forum. 6(8):e253508. doi:10.1001/jamahealthforum.2025.3508
  52. Nowalk NC, Rojas JC, Parker WF, Smith-Nunez A, Gray SE, Sood R, Lewis DO, Krishnamurthy R, Press VG. 2025. Impact of COPD bundled payments for care innovation program on readmissions and inpatient care quality: An instrumental variable. Chest Pulmonary. doi: 10.1016/j.chpulm.2025.100219
  53. Hsich EM, Khush KK, Schold JD, Parker WF, Blackstone EH. 2025. Modernizing the national transplant database. Am J Transplant. S1600-6135(25)02861-8. doi: 10.1016/j.ajt.2025.07.2475.
  54. Lazenby K, Tolmie S, Barrett K, White M, Zhang K, Narang N, Jasseron C, Dorent R, Khush K, Parker WF. 2025. Development of a risk score predicting survival after adult heart transplantation in the United States. J Heart Lung Transplant. 19:S1053-2498(25)02110-2. doi: 10.1016/j.healun.2025.07.004.

Peer-reviewed ethical analysis, exclusive of abstracts:

  1. Gallo A, Parker WF, Thistlethwaite JR, Ross LF. 2018. It is time to revise the kidney allocation system to restore the pediatric advantage. Am J Transplant. 18(9):2365-2366. doi: 10.1111/ajt.14898
  2. Miller WD, Peek ME, Parker WF. 2020. Scarce resource allocation scores threaten to exacerbate racial disparities in healthcare. Chest. 158(4):1332-1334. doi: 10.1016/j.chest.2020.05.52
  3. Parker WF, Persad G, Peek ME. 2021. Fair allocation at COVID-19 mass vaccination sites. JAMA Health Forum. 2(4):e210464. doi:10.1001/jamahealthforum.2021.0464
  4. Parker WF. Caring for the Unvaccinated. 2022. Ann Am Thorac Soc. 19(2):153-156. doi: 10.1513/AnnalsATS.202109-1039IP
  5. Parker WF, Persad G, Peek ME. 2021 Feb 10. Four recommendations to efficiently and equitably accelerate the COVID-19 vaccine rollout [blog]. Health Affairs Forefront [accessed 2023 Dec 15]. doi: 10.1377/hblog20210204.166874
  6. Kelly C, Parker WF, Pollack HA. 2021 Apr 2. Low-income COVID-19 patients die needlessly because they are stuck in the wrong hospitals—while the right hospitals too often shut them out [blog]. Health Affairs Forefront [accessed 2023 Dec 15]. doi: 10.1377/hblog20210401.95800
  7. Strohbehn GW, Parker WF, Reid PD, Gellad WF. 2021. Socially optimal pandemic drug dosing. Lancet Glob Health. 9(8):e1049-e1050. doi: 10.1016/S2214-109X(21)00251-5
  8. Parker WF, Persad G, Peek ME. 2022. Errors in converting principles to protocols: where the bioethics of COVID-19 vaccine allocation went wrong. Hastings Cent Rep. 52(5):8-14. doi: 10.1002/hast.1416
  9. Strohbehn G, Persad G, Parker WF, Murthy S. 2022. Dose optimisation and scarce resource allocation: two sides of the same coin. BMJ Open. 12(10):e063436. doi: 10.1136/bmjopen-2022-063436
  10. Khush KK, Sandhu AT, Parker WF. 2023. How to make the transplantation allocation system better. JACC Heart Fail. 11(5):516-519. doi: 10.1016/j.jchf.2022.11.029
  11. Derman BA, Parker WF. 2023. Fair allocation of scarce CAR T-Cell therapies for relapsed/refractory multiple myeloma. JAMA. 330(8):687–688. doi: 10.1001/jama.2023.11846
  12. Piscitello GM, DeMartino ES, Parker WF. 2025. Addressing inadequate documentation of unilateral do-not-resuscitate orders. JAMA. 333(9):755-756. doi:10.1001/jama.2024.26282
  13. Masotti M, Lyden GR, Johnson DY, Golbus JR, Parker WF, Snyder J. 2025. Implications for changes in US federal death record databases for estimation of mortality after delisting. Am J Transplant. 25(8):S781. doi: 10.1016/j.ajt.2025.07.1842
  14. Martinez M, Parker WF. 2025. Ethical allocation of physical and occupational therapy in acute care. J Hosp Med. doi: 10.1002/jhm.70111.

Reviews, Commentaries, and Editorials:

  1. Parker WF, Anderson AS, Huang ES, Garrity ER, Churpek MM. 2018. Reply: Does overtreatment of heart transplantation candidates exist? J Am Coll Cardiol. 72(6):703-704. doi: 10.1016/j.jacc.2018.06.006
  2. Pearson SD, Hall JB, Parker WF. 2020. Two for one with split- or co-ventilation at the peak of the COVID-19 tsunami: is there any role for communal care when the resources for personalised medicine are exhausted? Thorax. 75(6):444-445. doi: 10.1136/thoraxjnl-2020-214929
  3. Parker WF, Churpek MM, Anderson AS. 2020. Is it too early to investigate survival outcomes of the new US heart allocation system? J Heart Lung Transplant. 39(7):726. doi: 10.1016/j.healun.2020.01.1343
  4. Han X, Davis AM, Parker WF. 2021. Managing adult acute and acute-on-chronic liver failure in the ICU. JAMA. 326(19):1964-1965. doi: 10.1001/jama.2021.12742
  5. Dussault N, Churpek MM, Parker WF. 2022. Is it too soon to abandon all hope of useful post-transplant predictions in thoracic transplantation? Reply to: Expecting the unexpected, and prioritizing the predictable. J Heart Lung Transplant. 41(9):1304. doi: 10.1016/j.healun.2022.05.006
  6. Khunti K, Feldman EL, Laiteerapong N, Parker WF, Routen A, Peek ME. 2023. The impact of the COVID-19 pandemic on ethnic minority groups with diabetes. Diabetes Care. 46(2):228-236. doi: 10.2337/dc21-2495
  7. Chung K, Parker WF. 2023. A bridge to nowhere: The durable left ventricular assist device dilemma in the new heart allocation system. J Heart Lung Transplant. 42(1):87-88. doi: 10.1016/j.healun.2022.10.012
  8. Jablonski R, Parker WF. 2023. Inaccurate predictions in lung transplantation and implications for allocation policy. Chest. 163(1):16-17. doi: 10.1016/j.chest.2022.09.046
  9. Lyden GR, Johnson DY, Snyder JJ, Golbus JR, Parker WF. 2023. Best practices for statistical analysis of pretransplant medical urgency. J Heart Lung Transplant. doi: 10.1016/j.healun.2023.11.012
  10. Bernat JL, Khush KK, Shemie SD, Hartwig MG, Reese PP, Dalle Ave A, Parent B, Glazier AK, Capron AM, Craig M, Gofton T, Gordon EJ, Healey A, Homan ME, Ladin K, Messer S, Murphy N, Nakagawa TA, Parker WF, Pentz RD, Rodríguez-Arias D, Schwartz B, Sulmasy DP, Truog RD, Wall AE, Wall SP, Wolpe PR, Fenton KN. 2024. Knowledge gaps in heart and lung donation after the circulatory determination of death: Report of a workshop of the National Heart, Lung, and Blood Institute. J Heart Lung Transplant. S1053-2498(24)01499-2. doi: 10.1016/j.healun.2024.02.1455. 
  11. Lazaridis C, Badenes R, Lizza JP, Carroll E, Fan T, Roth W, Rubin MA, Parker WF, Bernat JL. 2025. The necessity of brain blood flow testing in thoracoabdominal normothermic regional perfusion. Transplantation. 109(11):1668-1670. doi: 10.1097/TP.0000000000005472
  12. Baker WL, Moore TE, Baron E, Kittleson M, Parker WF, Jaiswal A. 2025. A systematic review of reporting and handling of missing data in observational studies using the UNOS database. J Heart and Lung Transplant. 44(3):462-468. doi: 10.1016/j.healun.2024.10.023
  13. Piscitello GM, DeMartino ES, Parker WF. 2025. Unilateral Do-Not-Resuscitate orders-reply. JAMA. 333(23):2114-2115. doi: 10.1001/jama.2025.2988. PMID: 40366682.
  14. Gao CA, Ingraham NE, Hochberg CH, Weissman GE, Parker WF. 2025 Correspondence on “A common longitudinal intensive care unit data format (CLIF) for critical illness research”. Author’s reply. Intensive Care Med. doi: 10.1007/s00134-025-08029-2
  15. Piscitello GM, Huber MT, Meyer L, Lyons PG, Parker WF, DeMartino ES. 2025. US State Statutes Addressing Unilateral Clinician Decisions About Life-Sustaining Treatment. JAMA Health Forum. 6(8):e253508. doi:10.1001/jamahealthforum.2025.3508
  16. Gao CA, Parker WF. 2025. Optimal vasopressin initiation in septic shock. JAMA. 334;(7):643-644. doi:10.1001/jama.2025.8093.
  17. Ashana DC, Parker WF. 2025. Consideration of sociodemographics in sepsis risk prediction: Implications and next steps. Crit Care Med. 53(9):p e1833-e1835. doi: 10.1097/CCM.0000000000006777.
  18. Baker WL, Moore T, Baron E, Kittleson M, Parker WF, Jaiswal A. 2025. Re: Optimizing the handling of missing data in the UNOS database. J Heart Lung Transplant. 44(9):1526. doi: 10.1016/j.healun.2025.04.026.
  19. Amagai S, Chaudhari V, Chhikara K, Ingraham NE, Hochberg CH, Barker AK, Mao C, Ortiz AC, Weissman GE, Schmid BE, Schwinne M, Bhavani SV, Guleria S, Liao Z, Markov N, Lyons PG, Park-Egan B, Parker WF, Luo Y, Rojas JC, Gao CA; Common Longitudinal ICU data Format (CLIF) Consortium. 2025. The epidemiology of intensive care unit readmissions across ten health systems. Crit Care Explor. 7(11):e1341. doi: 10.1097/CCE.0000000000001341

Peer-reviewed works accepted or in press

  1. Wang A, Barrett K, White M, Narang N, Parker WF. Epub ahead of print. The association of place-based disadvantage and access to deceased donor heart transplantation. Am J Transplant doi: 10.1016/j.ajt.2025.09.013
  2. Ahn DJ, White M, Ran G, Narang N, Kanwar M, Parker WF. Epub ahead of print. Low rates of inotropic support and durable left ventricular assist device placement among Status 2 heart transplant candidates with temporary mechanical circulatory support. J Heart Lung Transplant. 13:S1053-2498(25)02389-7. doi: 10.1016/j.healun.2025.11.002.

Book chapters:

  1. Parker WF. 2018. Hemodynamic monitoring. In: Pasnick S, Poston J, Wang T, editors. ATS review for the critical care boards. 1st ed. New York (NY): American Thoracic Society.
  2. Parker WF, Becker Y, Gibbons RD. 2022. Saving more lives and enhancing equity with deceased donor organ allocation policies. In: Hackmann M, English RA, Kizer KW, editors. A fairer and more equitable, cost-effective, and transparent system of donor organ procurement, allocation, and distribution. Washington (DC): National Academies Press. p. 157-163. Commissioned paper. 
  3. Gallo AE, Parker WF, Ross LF. 2023. Deceased donor allocation policy and kidney allocation system on young pediatric recipients. In: Shapiro R, Sarwal MM, Raina R, Sethi SK, editors. Pediatric solid organ transplantation. Gateway East (Singapore): Springer Singapore. p. 45-57.
  4. Parker WF. 2022. Allocation of solid organs for transplantation. In: Jonsen AR, Siegler M, Winslade WJ, editors. Clinical ethics: A practical approach to ethical decisions in clinical medicine. 9th ed. New York (NY): McGraw Hill. p. 207-210. 
  5. Parker WF. 2022. Physician’s duty during epidemics. In: Jonsen AR, Siegler M, Winslade WJ, editors. Clinical ethics: A practical approach to ethical decisions in clinical medicine. 9th ed. New York (NY): McGraw Hill. p. 237-239. 

Other works that are publicly available (websites, interviews, publications in the popular press, testimony, computer programs, protocols, reagents, inventions, patents not listed above, etc.)

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