JOSEPH (JAY) ZWISCHENBERGER, M.D.
CHIEF MEDICAL OFFICER, CARDIOTHORACIC SURGEON, CRITICAL CARE
Dr. Zwischenberger serves at the University of Kentucky as Professor of Surgery
Roger Vertrees, Ph.D.
CHIEF SCIENCE OFFICER
Roger is a Certified Clinical Perfusionist Emeritus, and he received his Ph.D. from the University of Texas in Biomedical Sciences with a concentration in Experimental Oncologic Pathology.