Research

Studies of coverage, ownership, prices, place and the quality of care.

Themes

All publications

135 publications, newest first.

  1. Provider-Sponsored Health Plans Negotiated Lower Prices For Health Services Compared With Traditional Insurers, 2024Mead M, Mullens CL, Diaz A, Ibrahim AM. Health Aff (Millwood). 2026. More on this study: When the hospital is also the insurer
  2. Rural Residence and Postsurgical Outcomes Among Medicare BeneficiariesMullens CL, Diaz A, Bredbeck BC, Kunnath N, Dimick JB, Ibrahim AM. JAMA Netw Open. 2026.
  3. Minimally Invasive/Robotic Surgery for Colorectal Liver MetastasisDiaz A, Rojas AE, Gleisner AL. Surg Oncol Clin N Am. 2026.
  4. Surgical Quality at Rural Hospitals After Private Equity AcquisitionMullens CL, Mead M, Abid M, …, Diaz A. Ann Surg. 2026.
  5. Projected Cancer Screening and Outcomes Under the 2025 Federal Medicaid Eligibility RestrictionsShubeck SP, Diaz A. JAMA Oncol. 2026. More on this study: The screenings that won’t happen
  6. Revisiting Minimally Invasive Distal PancreatectomyDiaz A, Hogg ME. JAMA Surg. 2025.
  7. Distribution of pancreatic cancer surgery centers and spatial access to careParo A, Woldesenbet S, Diaz A, et al. J Gastrointest Surg. 2025.
  8. The Landmark Series: Minimally Invasive Pancreatic Resection for Ductal Adenocarcinoma, Updates, Trends, and Future ConsiderationsDiaz A, Hays S, Hogg ME. Ann Surg Oncol. 2025.
  9. ASO Author Reflections: The Landmark Series: Minimally Invasive Pancreatic Resection-Past, Present, and FutureDiaz A, Hays S, Hogg ME. Ann Surg Oncol. 2025.
  10. Hospitals Acquired By Private Equity Firms: Increased Postoperative Mortality For Common Inpatient SurgeriesDiaz A, Mead M, Rohde S, Kunnath N, Dimick JB, Ibrahim AM. Health Aff (Millwood). 2025. More on this study: After the buyout, more deaths after surgery
  11. Changes in surgical quality and access after rural hospital closuresMullens CL, Johnson PL, Probst JC, Dimick JB, Ibrahim AM, Diaz A. Health Aff Sch. 2025.
  12. Association of Hospital System Affiliation With Spending and Postoperative Outcomes: A Longitudinal Study of Hospital Mergers And Acquisitions From 2010 To 2018Diaz A, Nuliyalu U, Ryan AM, Dimick JB, Ibrahim AM, Nathan H. Ann Surg. 2024.
  13. Private Equity Investment in Surgical CareSievers MT, Neevel A, Diaz A, et al. Ann Surg. 2024.
  14. Liver transplantation for nonresectable colorectal liver metastases: a new therapeutic horizonDiaz A, Millis JM. J Gastrointest Surg. 2024.
  15. Surgeon Workforce in Underserved CommunitiesTaylor CD, Schaefer SL, Diaz A, Kunnath N, Scott JW, Ibrahim AM. JAMA Health Forum. 2024.
  16. Poverty and Its Impact on Surgical CareDiaz A, Pawlik TM. Adv Surg. 2024.
  17. Variation in Postoperative Outcomes Across Federally Designated Hospital Star RatingsDiaz A, Harbaugh C, Dimick JB, Kunnath N, Ibrahim AM. JAMA Surg. 2024.
  18. Bridging the Gap: Addressing Social Determinants to Enhance Access to Surgical Care and Improve Survival in Early-stage Colon CancerDiaz A, Pawlik TM. Ann Surg. 2024.
  19. Payer-Negotiated Price Variation and Relationship to Surgical Outcomes for the Most Common Cancers at NCI-Designated Cancer CentersSankaran R, O'Connor J, Nuliyalu U, Diaz A, Nathan H. Ann Surg Oncol. 2024.
  20. Development of Neighborhood Trajectories Employing Historic Redlining and the Area Deprivation IndexCarlos HA, Weiss JE, Carter B, Akré EL, Diaz A, Loehrer AP. J Urban Health. 2024.
  21. Trends in survival after heart transplantation based on Social Vulnerability Index in the United StatesAzap L, Diaz A, Gouchoe DA, et al. JHLT Open. 2024.
  22. Expanding Access to High-Quality Cancer Care Through Policy-California Cancer Care Equity ActDiaz A, Loehrer AP, Pawlik TM. JAMA Oncol. 2024.
  23. Association of Hospital Quality and Neighborhood Deprivation With Mortality After Inpatient Surgery Among Medicare BeneficiariesDiaz A, Lindau ST, Obeng-Gyasi S, Dimick JB, Scott JW, Ibrahim AM. JAMA Netw Open. 2023.
  24. Residential Redlining, Neighborhood Trajectory, and Equity of Breast and Colorectal Cancer CareLoehrer AP, Weiss JE, Chatoorgoon KK, …, Diaz A, et al. Ann Surg. 2023.
  25. Association Between Historical Redlining and Access to High-Volume Hospitals Among Patients Undergoing Complex Cancer Surgery in CaliforniaKhalil M, Munir MM, Woldesenbet S, …, Diaz A, et al. Ann Surg Oncol. 2023.
  26. Association of social determinants of health International Classification of Disease, Tenth Edition clinical modification codes with outcomes for emergency general surgery and trauma admissionsDiaz A, Azap L, Moazzam Z, Knight-Davis J, Pawlik TM. Surgery. 2023.
  27. Association of ICD-10 Clinical Modification Codes for Social Determinants of Health with Surgical Outcomes and Hospital Charges Among Cancer PatientsDiaz A, Pawlik TM. Ann Surg Oncol. 2023.
  28. ASO Author Reflections: International Classification of Diseases Codes for Social Determinants of Health: Still Not Ready for Prime TimeDiaz A, Pawlik TM. Ann Surg Oncol. 2023.
  29. Rural Versus Urban Cancer Care: Unpacking the Centralization Dilemma and the Impact of the COVID-19 PandemicDiaz A, Pawlik TM. JCO Oncol Pract. 2023.
  30. Optimizing care delivery in expanding health systems: Views from clinical leadersDiaz A, Chhabra KR, Byrnes ME, et al. Healthc (Amst). 2023.
  31. The Association of Persistent Poverty and Outcomes Among Patients Undergoing Cardiac SurgeryAzap L, Woldesenbet S, Lima HA, …, Diaz A, et al. J Surg Res. 2023.
  32. California's State Insurance Gender Nondiscrimination Act and Utilization of Gender-Affirming Surgery-ReplySchoenbrunner AR, Beckmeyer A, Diaz A. JAMA. 2023.
  33. Social determinants of health and surgical careDiaz A, Pawlik TM. Curr Probl Surg. 2023.
  34. Association Between California's State Insurance Gender Nondiscrimination Act and Utilization of Gender-Affirming SurgerySchoenbrunner AR, Beckmeyer A, Kunnath N, …, Diaz A. JAMA. 2023.
  35. Association of Skilled Nursing Facility Ownership by Health Care Networks With Utilization and SpendingKalata S, Howard R, Diaz A, Nuliyalu U, Ibrahim AM, Nathan H. JAMA Netw Open. 2023.
  36. A novel machine learning approach to identify social risk factors associated with textbook outcomes after surgeryHyer JM, Diaz A, Tsilimigras DI, Pawlik TM. Surgery. 2022.
  37. Questioning the legitimacy of bariatric surgery: a qualitative analysis of individuals from the community who qualify for bariatric surgeryChao GF, Diaz A, Ghaferi AA, Dimick JB, Byrnes ME. Surg Endosc. 2022.
  38. Fragmentation of practice: The adverse effect of surgeons moving aroundHyer JM, Diaz A, Ejaz A, et al. Surgery. 2022.
  39. Impact of Opioid Restriction Legislation on Prescribing Practices for Outpatient Plastic and Reconstructive SurgeryO'Brien AL, Krasniak PJ, Schroeder MJ, Desai MN, Diaz A, Chetta MD. Plast Reconstr Surg. 2022.
  40. Social Vulnerability And Outcomes For Access-Sensitive Surgical Conditions Among Medicare BeneficiariesZhang Y, Kunnath N, Dimick JB, Scott JW, Diaz A, Ibrahim AM. Health Aff (Millwood). 2022. More on this study: In vulnerable communities, surgery is more often unplanned
  41. Disparity in Clinical Trial Participation Among Patients with Gastrointestinal CancerAbbas A, Diaz A, Obeng-Gyasi S, et al. J Am Coll Surg. 2022.
  42. Association of Dual Medicare and Medicaid Eligibility With Outcomes and Spending for Cancer Surgery in High-Quality HospitalsTaylor K, Diaz A, Nuliyalu U, Ibrahim AM, Nathan H. JAMA Surg. 2022.
  43. Understanding Racially Diverse Community Member Views of Obesity Stigma and Bariatric SurgeryChao GF, Diaz A, Ghaferi AA, Dimick JB, Byrnes ME. Obes Surg. 2022.
  44. Surgical quality assurance at expanding health networks: A qualitative studyYang P, Diaz A, Chhabra KR, et al. Surgery. 2022.
  45. The win ratio: A novel approach to define and analyze postoperative composite outcomes to reflect patient and clinician prioritiesHyer JM, Diaz A, Pawlik TM. Surgery. 2022.
  46. Emergency Surgery Rates Among Medicare Beneficiaries With Access Sensitive Surgical ConditionsZhang Y, Diaz A, Kunnath N, Dimick JB, Scott JW, Ibrahim AM. J Surg Res. 2022.
  47. Do all Patients Get the Same Care Across Hospitals?Diaz A, Pawlik TM. Adv Surg. 2022.
  48. Association of Neighborhood Deprivation, Race, and Postoperative Outcomes: Improvement in Neighborhood Deprivation is Associated With Worsening Surgical DisparitiesDiaz A, Valbuena VSM, Dimick JB, Ibrahim AM. Ann Surg. 2022.
  49. Achieving an optimal textbook outcome following pancreatic resection: The impact of surgeon specific experience in achieving high quality outcomesChen Q, Diaz A, Beane JD, et al. Am J Surg. 2022.
  50. Surgical Leadership Competencies for Navigating Hospital Network ExpansionYang P, Diaz A, Chhabra KR, et al. J Surg Res. 2022.
  51. The association of upward economic mobility with textbook outcomes among patients undergoing general and cardiovascular surgeryAzap L, Azap RA, Hyer JM, Diaz A, Pawlik TM. Am J Surg. 2022.
  52. Impact of the Affordable Care Act on Presentation, Treatment, and Outcomes of Intrahepatic CholangiocarcinomaLima HA, Moazzam Z, Endo Y, …, Diaz A, et al. J Gastrointest Surg. 2022.
  53. Impact of hospital quality on surgical outcomes in patients with high social vulnerability: Association of textbook outcomes and social vulnerability by hospital qualityDiaz A, Beane JD, Hyer JM, Tsilimigras DI, Pawlik TM. Surgery. 2021.
  54. Rural hospitals are not associated with worse postoperative outcomes for colon cancer surgeryLansing SS, Diaz A, Hyer JM, Tsilimigras DI, Pawlik TM. J Rural Health. 2021.
  55. Social vulnerability and fragmentation of postoperative surgical care among patients undergoing hepatopancreatic surgeryDalmacy DM, Tsilimigras DI, Hyer JM, Paro A, Diaz A, Pawlik TM. Surgery. 2021.
  56. ASO Author Reflections: Association of Community Economic Distress and Breast and Colorectal Cancer Screening, Incidence, and Mortality Rates among U.S. CountiesHerbert C, Paro A, Diaz A, Pawlik TM. Ann Surg Oncol. 2021.
  57. Association of Community Economic Distress and Breast and Colorectal Cancer Screening, Incidence, and Mortality Rates Among US CountiesHerbert C, Paro A, Diaz A, Pawlik TM. Ann Surg Oncol. 2021.
  58. Timing and Severity of Postoperative Complications and Associated 30-Day Mortality Following Hepatic Resection: a National Surgical Quality Improvement Project StudyPathak P, Tsilimigras DI, Hyer JM, Diaz A, Pawlik TM. J Gastrointest Surg. 2021.
  59. The impact of social vulnerability subthemes on postoperative outcomes differs by racial/ethnic minority statusDiaz A, Hyer JM, Tsilimigras DI, Pawlik TM. Am J Surg. 2021.
  60. Trends in Textbook Outcomes over Time: Are Optimal Outcomes Following Complex Gastrointestinal Surgery for Cancer Increasing?Hyer JM, Beane JD, Spolverato G, …, Diaz A, et al. J Gastrointest Surg. 2021.
  61. Association of Historic Housing Policy, Modern Day Neighborhood Deprivation and Outcomes After Inpatient HospitalizationDiaz A, O'Reggio R, Norman M, Thumma JR, Dimick JB, Ibrahim AM. Ann Surg. 2021.
  62. Geographic Disparities in Oncologic Treatment and Outcomes: The Urban-Rural DivideDiaz A, Pawlik TM. Ann Surg Oncol. 2021.
  63. Impact of Perioperative Thromboembolic Complications on Future Long-term Risk of Venous Thromboembolism among Medicare Beneficiaries Undergoing Complex Gastrointestinal SurgeryParo A, Dalmacy DM, Hyer JM, Tsilimigras DI, Diaz A, Pawlik TM. J Gastrointest Surg. 2021.
  64. Profiles in social vulnerability: The association of social determinants of health with postoperative surgical outcomesParo A, Hyer JM, Diaz A, Tsilimigras DI, Pawlik TM. Surgery. 2021.
  65. Age-Based Left-Digit Bias in the Management of Acute CholecystitisDalmacy DM, Diaz A, Hyer JM, Pawlik TM. J Gastrointest Surg. 2021.
  66. ASO Author Reflections: County-Level Racial Diversity is Associated with Textbook Outcomes for Pancreatic SurgeryDiaz A, Pawlik TM. Ann Surg Oncol. 2021.
  67. Association of County-Level Racial Diversity and Likelihood of a Textbook Outcome Following Pancreas SurgeryDiaz A, Dalmacy DM, Herbert C, Mirdad RS, Hyer JM, Pawlik TM. Ann Surg Oncol. 2021.
  68. Disparities in NCCN Guideline Compliant Care for Resectable Cholangiocarcinoma at Minority-Serving Versus Non-Minority-Serving HospitalsTsilimigras DI, Dalmacy DM, Hyer JM, Diaz A, Abbas A, Pawlik TM. Ann Surg Oncol. 2021.
  69. Impact of Psychiatric Illness on Survival among Patients with Hepatocellular CarcinomaRice DR, Dalmacy DM, Hyer JM, Diaz A, Tsilimigras DI, Pawlik TM. J Gastrointest Surg. 2021.
  70. County-level Social Vulnerability is Associated With Worse Surgical Outcomes Especially Among Minority PatientsDiaz A, Hyer JM, Barmash E, Azap RA, Paredes AZ, Pawlik TM. Ann Surg. 2021.
  71. A higher hospital case mix index increases the odds of achieving a textbook outcome after hepatopancreatic surgery in the Medicare populationHyer JM, Tsilimigras DI, Diaz A, Mirdad RS, Pawlik TM. Surgery. 2021.
  72. Impact of Residential Racial Integration on Postoperative Outcomes Among Medicare Beneficiaries Undergoing Resection for CancerParo A, Dalmacy DM, Hyer JM, Tsilimigras DI, Diaz A, Pawlik TM. Ann Surg Oncol. 2021.
  73. Trends in Discharge Disposition Following Hepatectomy for Hepatocellular Carcinoma Among Medicare BeneficiariesDalmacy DM, Hyer JM, Diaz A, Paro A, Tsilimigras DI, Pawlik TM. J Gastrointest Surg. 2021.
  74. In-house intensivist presence does not affect mortality in select emergency general surgery patientsRushing AP, Strassels SA, Ricci KB, …, Diaz A, et al. J Trauma Acute Care Surg. 2021.
  75. Intersection of social vulnerability and residential diversity: Postoperative outcomes following resection of lung and colon cancerDiaz A, Dalmacy DM, Hyer JM, Tsilimigras DI, Pawlik TM. J Surg Oncol. 2021.
  76. Impact of Race/Ethnicity and County-Level Vulnerability on Receipt of Surgery Among Older Medicare Beneficiaries With the Diagnosis of Early Pancreatic CancerAzap RA, Diaz A, Hyer JM, et al. Ann Surg Oncol. 2021.
  77. ASO Author Reflections: County-Level Social Vulnerability Associated with Disparities in Pancreatic Cancer Treatment, Especially among Patients from Racial and Ethnic MinoritiesDiaz A, Azap RA, Pawlik TM. Ann Surg Oncol. 2021.
  78. Patient Social Vulnerability and Hospital Community Racial/Ethnic Integration: Do All Patients Undergoing Pancreatectomy Receive the Same Care Across Hospitals?Hyer JM, Tsilimigras DI, Diaz A, Dalmacy DM, Paro A, Pawlik TM. Ann Surg. 2021.
  79. Geospatial Inefficiencies Associated With Digital Replantations at High-Volume Centers and Optimal Allocation Model for Centralization of ReplantationsO'Brien AL, Diaz A, Jefferson RC, Pawlik TM, Moore AM. J Hand Surg Am. 2021.
  80. End-of-Life Hospice Use and Medicare Expenditures Among Patients Dying of Hepatocellular CarcinomaRice DR, Hyer JM, Diaz A, Pawlik TM. Ann Surg Oncol. 2021.
  81. Impact of cancer center accreditation on outcomes of patients undergoing resection for hepatocellular carcinoma: A SEER-Medicare analysisTsilimigras DI, Hyer JM, Diaz A, et al. Am J Surg. 2021.
  82. Association of social vulnerability with the use of high-volume and Magnet recognition hospitals for hepatopancreatic cancer surgeryDiaz A, Hyer JM, Azap RA, Tsilimigras DI, Pawlik TM. Surgery. 2021.
  83. Trends and outcomes of simultaneous versus staged resection of synchronous colorectal cancer and colorectal liver metastasesTsilimigras DI, Sahara K, Hyer JM, …, Diaz A, et al. Surgery. 2021.
  84. Robotic total knee arthroplasty: A missed opportunity for cost savings in Bundled Payment for Care Improvement initiatives?Shah R, Diaz A, Phieffer L, et al. Surgery. 2021.
  85. Complications After Complex Gastrointestinal Cancer Surgery: Benefits and Costs Associated with Inter-hospital Transfer Among Medicare BeneficiariesPathak P, Dalmacy DM, Tsilimigras DI, Hyer JM, Diaz A, Pawlik TM. J Gastrointest Surg. 2021.
  86. Postoperative imaging surveillance for hepatocellular carcinoma: How much is enough?Mirdad RS, Hyer JM, Diaz A, et al. J Surg Oncol. 2021.
  87. Importance of Radiologists in Optimizing Outcomes for Older Americans with Acute AbdomenRicci KB, Oslock WM, Ingraham AM, …, Diaz A, et al. J Surg Res. 2021.
  88. High Social Vulnerability and "Textbook Outcomes" after Cancer OperationHyer JM, Tsilimigras DI, Diaz A, et al. J Am Coll Surg. 2021.
  89. Synergistic Impact of Alpha-Fetoprotein and Tumor Burden on Long-Term Outcomes Following Curative-Intent Resection of Hepatocellular CarcinomaTsilimigras DI, Hyer JM, Diaz A, et al. Cancers (Basel). 2021.
  90. Association of County-Level Vulnerability, Patient-Level Race/Ethnicity, and Receipt of Surgery for Early-Stage Hepatocellular CarcinomaAzap RA, Hyer JM, Diaz A, Paredes AZ, Pawlik TM. JAMA Surg. 2021.
  91. Trends in the Geospatial Distribution of Inpatient Adult Surgical Services across the United StatesDiaz A, Schoenbrunner AR, Pawlik TM. Ann Surg. 2021.
  92. Challenges and Opportunities for the Academic Mission Within Expanding Health Systems: A Qualitative StudyChhabra KR, Diaz A, Byrnes ME, et al. Ann Surg. 2020.
  93. Variation in Surgical Spending Among the Highest Quality Hospitals for Cancer SurgeryDiaz A, Nuliyalu U, Dimick JB, Nathan H. Ann Surg. 2020.
  94. Mental illness is associated with increased risk of suicidal ideation among cancer surgical patientsHyer JM, Kelly EP, Paredes AZ, Tsilimigras DI, Diaz A, Pawlik TM. Am J Surg. 2020.
  95. Utilization of High-Volume Hospitals for High-Risk Cancer Surgery in California Following Medicaid ExpansionDiaz A, Chavarin D, Paredes AZ, Pawlik TM. J Gastrointest Surg. 2020.
  96. COVID-19 pandemic and mental health: The surgeon's role in re-engaging patientsParedes AZ, Diaz A, Pawlik TM. Am J Surg. 2020.
  97. Identifying the fundamental structures and processes of care contributing to emergency general surgery quality using a mixed-methods Donabedian approachSantry HP, Strassels SA, Ingraham AM, …, Diaz A, et al. BMC Med Res Methodol. 2020.
  98. Rural Surgery and Status of the Rural Workplace: Hospital Survival and EconomicsDiaz A, Pawlik TM. Surg Clin North Am. 2020.
  99. Mitigating the health shock of traumatic injuryDiaz A, Chaffee SM, Santry HP. Am J Surg. 2020.
  100. The Impact of Mental Illness on Postoperative Outcomes Among Medicare Beneficiaries: A Missed Opportunity to Help Surgical Patients?Paredes AZ, Hyer JM, Diaz A, Tsilimigras DI, Pawlik TM. Ann Surg. 2020.
  101. COVID-19: The road to recoveryDiaz A, Rahmanian A, Pawlik TM. Am J Surg. 2020.
  102. Examining healthcare inequities relative to United States safety net hospitalsParedes AZ, Hyer JM, Diaz A, Tsilimigras DI, Pawlik TM. Am J Surg. 2020.
  103. Trends in the Geospatial Distribution of Adult Inpatient Surgical Cancer Care Across the United StatesDiaz A, Schoenbrunner AR, Pawlik TM. J Gastrointest Surg. 2020.
  104. Inter-surgeon variability is associated with likelihood to undergo minimally invasive hepatectomy and postoperative mortalityTsilimigras DI, Hyer JM, Chen Q, …, Diaz A, et al. HPB (Oxford). 2020.
  105. Refusal of Surgery Among Patients with Early-Stage Hepato-Pancreato-Biliary Cancers: Predictive Factors and OutcomesMirdad RS, Tsilimigras DI, Hyer JM, Diaz A, Azap RA, Pawlik TM. J Gastrointest Surg. 2020.
  106. Travel Patterns among Patients Undergoing Hepatic Resection in California: Does Driving Further for Care Improve Outcomes?Diaz A, Cloyd JM, Manilchuk A, et al. J Gastrointest Surg. 2020.
  107. Association of County-Level Social Vulnerability with Elective Versus Non-elective Colorectal SurgeryDiaz A, Barmash E, Azap RA, Paredes AZ, Hyer JM, Pawlik TM. J Gastrointest Surg. 2020.
  108. Variations in surgical spending within hospital systems for complex cancer surgeryDiaz A, Chhabra KR, Dimick JB, Nathan H. Cancer. 2020.
  109. Insurance status and high-volume surgical cancer: Access to high-quality cancer careDiaz A, Pawlik TM. Cancer. 2020.
  110. Impact of time-to-surgery on outcomes of patients undergoing curative-intent liver resection for BCLC-0, A and B hepatocellular carcinomaTsilimigras DI, Hyer JM, Diaz A, et al. J Surg Oncol. 2020.
  111. Association of Neighborhood Characteristics with Utilization of High-Volume Hospitals Among Patients Undergoing High-Risk Cancer SurgeryDiaz A, Chavarin D, Paredes AZ, Tsilimigras DI, Pawlik TM. Ann Surg Oncol. 2020.
  112. Re-examining "Never Letting the Sun Rise or Set on a Bowel Obstruction" in the Era of Acute Care SurgeryDiaz A, Ricci KB, Rushing AP, et al. J Gastrointest Surg. 2020.
  113. Sex-based differences in time to surgical care among pancreatic cancer patients: A national study of Medicare beneficiariesAzap RA, Hyer JM, Diaz A, Tsilimigras DI, Mirdad RS, Pawlik TM. J Surg Oncol. 2020.
  114. The association between self-declared acute care surgery services and critical care resources: Results from a national surveyTameron AM, Ricci KB, Oslock WM, …, Diaz A, et al. J Crit Care. 2020.
  115. Quality Versus Costs Related to Gastrointestinal Surgery: Disentangling the Value PropositionShah R, Diaz A, Tripepi M, et al. J Gastrointest Surg. 2020.
  116. ASO Author Reflections: Centralization of High-Risk Cancer Surgery and Implications for Vulnerable CommunitiesDiaz A, Pawlik TM. Ann Surg Oncol. 2020.
  117. A Novel Classification of Intrahepatic Cholangiocarcinoma Phenotypes Using Machine Learning Techniques: An International Multi-Institutional AnalysisTsilimigras DI, Hyer JM, Paredes AZ, …, Diaz A, et al. Ann Surg Oncol. 2020.
  118. The association of neighborhood social vulnerability with surgical textbook outcomes among patients undergoing hepatopancreatic surgeryAzap RA, Paredes AZ, Diaz A, Hyer JM, Pawlik TM. Surgery. 2020.
  119. Regionalization of Pancreatectomy for Pancreatic Cancer-ReplyDiaz A, Pawlik TM. JAMA Surg. 2020.
  120. Variation in value among hospitals performing complex cancer operationsDiaz A, Paredes AZ, Hyer JM, Pawlik TM. Surgery. 2020.
  121. Elective surgery in the time of COVID-19Diaz A, Sarac BA, Schoenbrunner AR, Janis JE, Pawlik TM. Am J Surg. 2020.
  122. Optimal Location for Centralization of Hospitals Performing Pancreas Resection in CaliforniaDiaz A, Pawlik TM. JAMA Surg. 2020.
  123. Accessing surgical care for esophageal cancer: patient travel patterns to reach higher volume centerDiaz A, Burns S, D'Souza D, et al. Dis Esophagus. 2020.
  124. Hepatopancreatobiliary Surgery: the Role of Clinical Resources and Variation in Performance of Hospitals Located in "Distressed" CommunitiesFarooq A, Paredes AZ, Merath K, …, Diaz A, et al. J Gastrointest Surg. 2019.
  125. Complex hepato-pancreato-biliary caseload during general surgery residency training: are we adequately training the next generation?Diaz A, Schoenbrunner AR, Dillhoff M, et al. HPB (Oxford). 2019.
  126. Accessing surgical care for pancreaticoduodenectomy: Patient variation in travel distance and choice to bypass hospitals to reach higher volume centersDiaz A, Burns S, Paredes AZ, Pawlik TM. J Surg Oncol. 2019.
  127. Local referrals as a strategy for increasing value of surgical care among medicare patients undergoing liver and pancreatic surgeryMerath K, Chen Q, Diaz A, et al. HPB (Oxford). 2019.
  128. Women surgeons and the emergence of acute care surgery programsOslock WM, Paredes AZ, Baselice HE, …, Diaz A, et al. Am J Surg. 2019.
  129. Characterizing and Assessing the Impact of Surgery on Healthcare Spending Among Medicare Enrolled Preoperative Super-utilizersHyer JM, Ejaz A, Diaz A, et al. Ann Surg. 2019.
  130. Geographic Distribution of Adult Inpatient Surgery Capability in the USADiaz A, Schoenbrunner AR, Cloyd JM, Pawlik TM. J Gastrointest Surg. 2019.
  131. Association between operating room access and mortality for life-threatening general surgery emergenciesDaniel VT, Rushing AP, Ingraham AM, …, Diaz A, et al. J Trauma Acute Care Surg. 2019.
  132. Hospital Teaching Status and Medicare Expenditures for Hepato-Pancreato-Biliary SurgeryChen Q, Bagante F, Merath K, …, Diaz A, et al. World J Surg. 2018.
  133. Surgical Procedures in Health Professional Shortage Areas: Impact of a Surgical Incentive Payment PlanDiaz A, Merath K, Bagante F, et al. Surgery. 2018.
  134. Papillary lesions of the breast: To excise or observe?Khan S, Diaz A, Archer KJ, et al. Breast J. 2017.
  135. Tinnitus management with percutaneous osseointegrated auditory implants for unilateral sensorineural hearing lossIndeyeva YA, Diaz A, Imbrey T, Gao G, Coelho DH. Am J Otolaryngol. 2015.
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