SUTTON, UNITED KINGDOM – SEPTEMBER 29: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge arrive at the Royal Marsden Hospital to open the new Oak Centre for Children and Young People at Royal Marsden Hospital on September 29, 2011 in Sutton, Greater London. (Photo by Indigo/Getty Images)
