LONDON, ENGLAND - JUNE 1: Prince Harry and Birgitte, Duchess of Gloucester (L) in her capacity as Papworth Hospital's Royal Patron, pose for a group photograph with, (from second left) Papworth Hospital chairman Professor John Wallwork, Consultant Intensivist Dr Alain Vuylsteke, perfusion scientist Giordano Paiella, senior staff nurse Laura Bowden and lead ECMO nurse Jo-anne Fowles after presenting U.S. Staff Sergeant Elizabeth Marks' gold medal to the medical team from Britain's Papworth Hospital at Kensington Palace  on June 1, 2016 in London, England. At the 2016 Invictus Games in Orlando, U.S. Staff Sergeant Elizabeth Marks asked Prince Harry to present her 100m swimming freestyle medal to the team at Papworth Hospital, who she credits for saving her life. (Photo by Matt Dunham - WPA Pool/Getty Images)