English: A bone marrow harvest. Description from that page: 021204-N-0696M-180 Georgetown University Hospital, Washington, D.C. (Dec. 4, 2002) -- Surgeon Dr. Hans Janovich performs a bone marrow harvest operation on Aviation Electronics Technician 1st Class Michael Griffioen. The procedure consists of inserting a large-gauge syringe into an area of the hip and extracting the bone marrow. It is transfused into the recipient, and helps to recreate and replenish T-cells and the white and red blood cells killed while undergoing chemotherapy. Griffioen is assigned to the Pre-commissioning Unit Ronald Reagan (CVN 76) and was matched with an anonymous cancer patient through the Department of Defense Marrow Donor Program. U.S. Navy photo by Photographer’s Mate 2nd Class Chad McNeeley.