Resident Hospital of the University of Pennsylvania
B. Jian, Associate Professor of Clinical Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, UNITED STATES|J.L. Roberson, Instructor in Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, UNITED STATES|N.M. Saur, Associate Professor of Clinical Surgery, Hospital of the University of Pennsylvania, Hospital of the University of Pennsylvania, Philadelphia, PA, US, academic/hospital, Philadelphia, Pennsylvania, UNITED STATES|L. Maguire, Assistant Professor of Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, UNITED STATES|
