Dr. Rich is a recipient of the Lifetime Achievement Award of the American Association of Immunologists as well as editor-in-chief of Clinical Immunology, 4th Edition. He is currently a professor at the University of Alabama, Birmingham.

Dirk Richter, MD is a co-author of Body Contouring and Liposuction and Director of the plastic & reconstructive surgery department at Dreifaltigkeits-Hospital in Wesseling, Germany.

Dr. Rigel earned his MD from George Washington University and is currently a clinical professor of dermatology at New York University Medical Center as well as the editor of Cancer of the Skin, 2nd Edition.

James M. Ritter, DPhil, FRCP, FBPharmacolS, FMedSci is Emeritus Professor of Clinical Pharmacology, King’s College London, and Medical Research Director, Quintiles, London. He is a co-author of . MORE

Dr. Rivera-Zengotita graduated from Ponce School of Medicine in Puerto Rico and is currently a pathology professor at the University of Florida College of Medicine, Gainesville as well as co-author of Neuropathology.