LONDON, UNITED KINGDOM - MAY 16:  Prince William, Duke of Cambridge, right, meets patient Daisy Wood, 6, and her mother Katie during a visit to the Royal Marsden hospital on May 16, 2017 in Sutton, England.  The Duke of Cambridge, President of the Royal Marsden NHS Foundation Trust, visited the hospital's facilities in Sutton. During the visit, which marks 10 years since His Royal Highness became President of the centre, The Duke accompanied staff as they went about their daily activities in treating and caring for patients.  (Photo by Kirsty Wigglesworth - WPA Pool/Getty Images)