Dr. Eli D. Ehrenpreis is the Chief of Gastroenterology and Head of Endoscopy at NorthShore Highland Park Hospital. He is Board Eligible in Clinical Pharmacology and has special research interest in functional bowel disorders, radiation injury of the gastrointestinal tract, microscopic and other forms of colitis, pelvic floor disorders and mesenteric panniculitis. He has developed several novel treatments for these conditions. Dr Ehrenpreis has published more than 60 original articles and 16 review articles on subjects related to gastrointestinal disease and clinical pharmacology in addition to authoring 15 book chapters for textbooks. He is an invited reviewer for a number of medical journals and has lectured around the world.