180215-N-RZ218-0174 QUANTICO, Va. (Feb. 15, 2018) Capt. David Whittaker, right, U.S. Navy Bureau of Medicine and Surgery, addresses military and civilian professionals during a panel discussion at the 21st Century Battlefield Medical Care Symposium, held at Marine Corps Base Quantico. (U.S. Navy photo by Mass Communication Specialist 1st Class John Paul Kotara II/Released)