Adi Huja needed 120 units of blood when she was wounded in the 2001 Sbarro terrorist bombing in Jerusalem. Professor Avi Rivkind of Hadassah hospital told Adi that not only will she fully recover, but that he’ll one day dance at her wedding. 13 years later, Adi danced with Professor Rivkind.
http://www.theyeshivaworld.com/news/headlines-breaking-stories/218145/traumatologist-prof-avi-rivkind-makes-good-on-his-promise.html