Clinical Research and Adult Diabetes Sections, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts. Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts. Regeneron Pharmaceuticals, Inc., Tarrytown, New York. Sanofi, Paris, France. Sanofi, Bridgewater, New Jersey. Biostatistics and Programming, Sanofi, Chilly-Mazarin, France. IviData Stats, Levallois-Perret, France. Li Ka Shing Knowledge Institute, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.