Prince Philip has undergone a 'successful procedure for a pre-existing heart condition,' Buckingham Palace confirms

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Outside St. Bartholomew's Hospital in London on March 1, 2021, where Philip has been transferred for treatment for an infection and a pre-existing heart condition. Photo: © Yui Mok/PA Images via Getty Images

Prince Philip has undergone a 'successful procedure for a pre-existing heart condition,' Buckingham Palace confirms

Outside St. Bartholomew's Hospital in London on March 1, 2021, where Philip has been transferred for treatment for an infection and a pre-existing heart condition. Photo: © Yui Mok/PA Images via Getty Images