MelvinM. Grumbach, MD, widely regarded as the world’s foremost pediatric endocrinologist, died October 4, 2016, at the age of 90 (Fig. 1). Beloved by all and affectionately known as Mel, he was the Edward B. Shaw Professor of Pediatrics, Emeritus, former Chairman of the Department of Pediatrics (1966–1986) at the University of California, San Francisco (UCSF) and a former President of The Endoc...