JFK's life-long struggle with chronic back pain made him one of our sickest presidents and may have kept him from recoiling from Lee Harvey Oswald's first bullet, setting him up for the second, kill shot.
원문출처 : http://www.cnn.com/2017/11/22/health/jfk-assassination-back-pain/index.html
원문출처 : http://www.cnn.com/2017/11/22/health/jfk-assassination-back-pain/index.html