At the University of Texas Medical School at Houston, we would like to recognize the bright and enthusiastic medical students who have inspired us to find better ways to teach. At The Methodist Hospital, I appreciate the support from Drs. Mark Boom, Judy Paukert, and Alan Kaplan. At St. Joseph Medical Center, I would like to recognize some of the finest administrators I have encountered: Pat Mathews, John Bertini, MD, and Thomas V. Taylor, MD. I appreciate Linda Bergstrom's excellent advice and assistance. Without the help from my colleagues and friends, Drs. Konrad Harms, Priti Schachel, Gizelle Brooks-Carter, and John C. McBride, this book could not have been written. Most importantly, I am humbled by the love, affection, and encouragement from my lovely wife, Terri, and our four children, Andy, Michael, Allison, and Christina.