LONDON, ENGLAND - MARCH 10: Catherine, Duchess of Cambridge speaks to former patients during their visit to St Thomas' Hospital on March 10, 2016 in London, England. (Photo by Toby Melville - WPA Pool/Getty Images)
LONDON, ENGLAND - MARCH 10: Catherine, Duchess of Cambridge speaks to former patients during their visit to St Thomas' Hospital on March 10, 2016 in London, England. (Photo by Toby Melville - WPA Pool/Getty Images)