About the contributor

• Stephen J. Sontag
• Susan M. Harding

Stephen J. Sontag

Dr Stephen Sontag is Professor of Medicine at Loyola University School of Medicine and Staff Physician in Gastroenterology at the Edward Hines, Jr. Veterans Affairs Hospital, Hines, Illinois. He graduated from the Chicago Medical School and is Board certified in Internal Medicine with a subspecialty in Gastroenterology. He is a member of the American Society for Gastrointestinal Endoscopy and American Gastroenterological Association. He is a Fellow of the American College of Physicians and American College of Gastroenterology. During the past thirty years, his research activities have involved investigations on Barrett's esophagus, H. pylori infection of the stomach, colorectal cancer screening, and the relationship between gastroesophageal reflux and asthma.

Susan M. Harding

Susan M. Harding, M.D., F.C.C.P., D.-A.B.S.M., is Professor of Medicine at the University of Alabama at Birmingham in the Division of Pulmonary, Allergy and Critical Care Medicine where she serves as Medical Director of the Sleep-Wake Disorders Center. She is a 1982 graduate of the University of Florida College of Medicine, and did her residency and fellowship training at the University of Alabama at Birmingham. She is a past awardee of the NIH-NHLBI Sleep Academic Award and the NIH Physician-Scientist Award. Dr Harding serves on the American Board of Sleep Medicine and in leadership capacities within the American College of Chest Physicians. She is the inaugural Editor-in-Chief of Chest Physician. Her research interests include nocturnal asthma; pulmonary manifestations of gastroesophageal reflux; and cardiovascular co-morbidities of sleep apnea.