Dr. Spiegel received his MD from the Universite Laval in Quebec and is a psychiatry & behavioral sciences professor at Albert Einstein College of Medicine. He is co-author of Psychiatry Test Preparation & Review Manual.

Dr. Spiro is head of the Department of Thoracic Medicine at University College London Hospitals NHS Trust and chair of the London Lung Cancer Group as well as an editor of Clinical Respiratory Medicine, 4th Edition.

Dr. Spratt is a co-author of Imaging Atlas of Human Anatomy, 4th Edition as well as the Clinical Director of Radiology and the Consultant Clinical Radiologist at the University Hospital of North Durham, UK.

Dr. St. John Sutton received his MD from the Guys Hospital Medical School, London and is currently a professor at the University of Pennsylvania as well as author of Echocardiography in Heart Failure.

Dr. Stamos received his MD from Case Western Reserve University and is currently a general surgery professor at the University of California, Irvine as well as co-author of the textbook, Colorectal Surgery.