LONDON, UNITED KINGDOM - FEBRUARY 14: (NOT FOR NON-EDITORIAL USE WITHOUT PRIOR PERMISSION OF COPYRIGHT HOLDER) Diana , Princess Of Wales, Opening The New Renal Unit At Great Ormond Street Hospital, London The Visit Is Also To Celebrate The Variety Club's Gold Heart Day On Valentine's Day And The Hospital Also Celbrates It's 145th Anniversary Today (Photo by Tim Graham Photo Library via Getty Images)