Warren Zapol
Warren M. Zapol (1942 – 14 December 2021) was the emeritus Anesthetist-in-Chief at Massachusetts General Hospital from (1994–2008) and the Reginald Jenney Distinguished Professor of Anaesthesia at Harvard Medical School. From 1994 to 2008, Zapol served as anesthetist-in-chief at MGH and was the director of the MGH Anesthesia Center for Critical Care Research until his death.