### Dr. William Petit: Background and Contributions to Diabetes Research **Professional Background:** Dr. William Petit is a highly respected physician specializing in internal medicine and endocrinology. He is a diplomate of both the American Board of Internal Medicine and the American Board of Endocrinology and Metabolism. Additionally, he is a fellow of the American College of Physicians. **Current Role:** Dr. Petit serves as an attending physician at Yale-New Haven Hospital. He has also held significant positions within the American Diabetes Association, including being a past president and board member of its Connecticut affiliate. **Education and Training:** Dr. Petit earned his bachelor's degree from Dartmouth College and his medical degree from the University of Pittsburgh School of Medicine. He completed his internship and residency at Strong Memorial Hospital at the University of Rochester School of Medicine. He further specialized in endocrinology and metabolism during his postdoctoral fellowship at Yale University School of Medicine. **Research Contributions:** Dr. Petit has made substantial contributions to diabetes research. He was involved in the Diabetes Control and Complications Trial and served as a principal investigator in the ACARBOSE Clinical Study. His research interests also include hyperparathyroidism, endocrinology, glycogen, and cholesterol. He has published numerous articles on these topics, advancing the understanding and treatment of diabetes and related conditions.