authors Shah, Adil Aijaz Zafar, Hasnain Efron, David T Haider, Adil Hussain Cheryl K. Zogg, PhD, MSPH, MHS Schwartz, Diane A Haut, Elliott R Zafar, Syed Nabeel Schneider, Eric B Velopulos, Catherine G Shafi, Shahid
has subject area Adolescent Adult Aged Aged, 80 and over Comorbidity Emergency Medicine Female General Surgery Health Services Research Hospital Mortality Humans Incidence Male Middle Aged Outcome Assessment, Health Care Postoperative Complications Retrospective Studies Risk Factors United States