Department of Cell Biology, Neurobiology & Anatomy presents Hiram Benjamin Lecture in Cell Biology & Anatomy David E. Clapham, MD, PhD. Aldo R. Castenada Professor of Cardiovascular Research, Children's Hospital Boston Professor of Neurobiology and Pediatrics, Harvard Medical School Investigator, Howard Hughes Medical Institute “The Struggle for Existence - Ion Channels in Spermatozoa” Wednesday, November 14, 2012 12:00 PM CVC Conference Room, 4th Floor HRC.