University of Pittsburgh, University of Pittsburgh, University of Pittsburgh, University of Pittsburgh, University of Pittsburgh - Department of Surgery, University of Pittsburgh, University of Pittsburgh - Department of Surgery, University of Pittsburgh, University of Pittsburgh - Graduate School of Public Health, University of Texas at Houston - Health Science Center at Houston (UTHealth), University of Pennsylvania, Government of the United States of America - Uniformed Services University of the Health Sciences, University of Colorado at Denver - Department of Surgery, University of Miami - Miller School of Medicine, University of Texas at Dallas - Southwestern Medical Center, University of Nebraska at Omaha, University of Pittsburgh - Department of Immunology, University of Pittsburgh - Department of Surgery, University of Pittsburgh - Department of Surgery and Independent