Phil McCarvill at Marie Curie Cancer Care has said that the Liverpool Care Pathway remains an "important part of good end-of-life care".
But he said that his charity is calling for a national audit in order to "ensure confidence in end-of-life care" in the UK.
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There was something very striking about the pact, which implies the new agreement could remain in place even if the prime minister does not.
The royal will visit the site of the deadly attack at Manchester Arena as he remembers those killed and injured.