Dr. John M. Howard, an internationally honored student of pancreatic diseases and a pioneer pancreatic surgeon, is the author or co-author of over 400 scientific reports and 12 books, including the renowned "Surgical Diseases of the Pancreas", now in its third edition. He is Emeritus Professor of Surgery at the Medical College of Ohio in Toledo, USA. Dr. Walter Hess, a master surgeon with an internationally based clinical practice in Zurich, grew up in Switzerland. There he learned not only the ancient languages of Greek and Latin but the modern ones of English, French, German, Spanish and Italian. Co-author of the magnificent 4 volume English-language series entitled Textbook of Bilio-Pancreatic Diseases and its editions in German, Italian and French, Dr. Hess has been honored as Visiting Professor and recipient of numerous awards throughout the world. He is Emeritus Professor of Surgery at the University of Basel, Switzerland.