Dr. SHAW. That is true. I have seen many bullets that have passed through bodies or have penetrated bodies and have struck bone and I know manners from which they are deformed but I know very little about the caliber of bullets, the velocity of bullets, many things that other people have much more knowledge of than I have. Senator COOPER. That is all. The CHAIRMAN. Thank you very much, Dr. Shaw. TESTIMONY OF DR. CHARLES FRANCIS GREGORY Senator COOPER. Do you solemnly swear the testimony you are going to give to this Commission will be the truth, the whole truth, and nothing but the truth, so help you God? Dr. GREGORY. I do. Mr. SPECTER. Would you state your full name for the record, please? Dr. GREGORY. Doctor Charles Francis Gregory. Mr. SPECTER. What is your profession, sir? Dr. GREGORY. I am a physician and surgeon. Mr. SPECTER. Would you outline your educational background briefly, please? Dr. GREGORY. I received a bachelor of science degree from the University of Indiana in 1941, and an M.D. degree in medicine from the Indiana University School of Medicine in 1944. Following 1-year internship and a tour of duty in the U.S. Navy, I undertook 5 years of postgraduate training in orthopedic surgery at Indiana University Medical Center. Upon completing that training I became a member of the faculty at Indiana University Medical School, and remained so until November of 1952, when I reentered the U.S. Navy for another 20 months. In 1956 I was appointed professor and then chairman of the Division of Orthopedic Surgery at the University of Texas Southwestern Medical School, where I presently am. Mr. SPECTER. Are you certificated by the American Board of Orthopedic Surgery? Dr. GREGORY. I am, in 1953. Mr. SPECTER. What experience, if any, have you had with bullet wounds, Doctor? Dr. GREGORY. Beyond the rather indigenous nature of such wounds in the main teaching hospital at Southwestern Medical School, my experience has covered a tour of duty in the Navy during World War II, and a considerably more active period of time in the Korean war in support of the 1st Marine Corps Division. Mr. SPECTER. What is your best estimate as to the total number of bullet wounds you have had an opportunity to observe and treat? Dr. GREGORY. I would estimate that I have dealt directly with approximately 500 such wounds. Mr. SPECTER. Are you a licensed doctor in the State of Texas at the present time? Dr. GREGORY. I am. Mr. SPECTER. What were your duties in a general way back on November 22, 1963, with Parkland Hospital? Dr. GREGORY. On that date, November 22, 1963, I was seeing patients in the health service of the adjacent medical school building when about noon I was advised that the President of the United States had been admitted to Parkland Hospital due to gunshot injuries. I went immediately to the emergency room area of the Parkland Hospital, and upon gaining admission to the emergency room, I encountered the hospital superintendent.