Alejandro Berenstein, MD (Dr B.) was born in Mexico City in 1948, graduated from the UNAM, at present is Professor of Radiology, Neurology, and Neurosurgery at the Albert Einstein College of Medicine and is Director of the Hyman-Newman Institute for Neurology and Neurosurgery at Roosevelt Hospital in NYC. Berenstein is also the Site Chair in the Institute of Neurology and Neurosurgery at Mount Sinai Hospital.