He added: 'Whether the American people will buy that, I don't know.'^ Clark, Robert E (June 9, 1956). "President's Heart Reported Sound; Surgery Is Indicated: Inflamed, Obstructed, Intestine Is Blamed". Atlanta Daily World. p. 1. Retrieved December 22, 2016.

^ Leviero, Anthony (June 9, 1956). "President Undergoes Surgery on Intestine Block at 2:59 A.M.: Doctors Pronounce It Success : Condition Is Good: Operation Lasts Hour and 53 Minutes–13 Attend Him". The New York Times. p. 1. Retrieved December 22, 2016. President Eisenhower was operated on at 2:59 A.M. today for relief of an intestinal obstruction. At 4:55 A.M., the operation was pronounced a success by the surgeons. ... The President's condition was diagnosed as ileitis. This is an inflamation of the ileum—the lowest portion of the small intestine, where it joins the large intestine. ... The President first felt ill shortly after midnight yesterday. He had attended a dinner of the White House News Photographers Association Thursday night and had returned to the White House at 11. Mrs. Eisenhower called Maj. Gen. Howard McC. Snyder, the President's personal physician, at 12:45 A.M. yesterday, telling him the President had some discomfort in his stomach. 