Prince Philip, 99, begins his 23rd day under care of specialist heart doctors

The Duke of Edinburgh , 99, remains at London
The Duke of Edinburgh , 99, remains at London 's private King Edward VII's Hospital, where he was moved back to on Friday after a procedure on a pre-existing heart condition.

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Prince Philip, 99, leaves London hospital after 1 month stay, heart procedure - Good Morning America

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Prince Philip, 99, spends second night under observation in hospital

Prince Charles visits 99-year-old Prince Philip in hospital - The Boston Globe

Prince Philip, 99, begins his 23rd day under care of specialist heart doctors

Prince Philip transferred to second hospital for heart condition tests

Prince Philip, 99, begins his 23rd day under care of specialist

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