Prince Of Wales And The Duchess Of Cornwall Visit Northern Ireland - Day One [Getty Images]

LONDONDERRY, NORTHERN IRELAND - MAY 09: Prince Charles, Prince of Wales meets Robert Mawhinney on a tour of the North West Cancer Centre at Altnagelvin Hospital during a visit to Northern Ireland on May 9, 2017 in Londonderry, Northern Ireland. (Photo by Niall Carson - WPA Pool/Getty Images)

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