Lawrence P. Levitt, M.D., is Senior Consultant in Neurology Emeritus at Lehigh Valley Hospital in Allentown, Pa. He founded the neurology division at that hospital and assisted the effort to transform it into the largest teaching hospital in Pennsylvania. He is professor of clinical medicine (neurology) at Penn State College of Medicine. He is co-author of Neurology, one of America’s most popular neurology texts. The book is now in its seventh edition and has been translated into eight foreign languages including Russian, Chinese and Japanese. He lives in Allentown, Pa.