David Cameron has said the accusation that the NHS would not be safe in his hands is what "hurt me the most".
My love of the NHS, my respect for the NHS, my commitment to the NHS runs through every sinew of my body.
The NHS is safe in my hands and I don't want anyone to ever tell you otherwise.
Mr Cameron was speaking as he outlined plans for "a truly seven-day NHS" which he said would cater for "every generation to come".
The Prime Minister has pledged to deliver a seven day-a-week health service in his first major speech since returning to Downing Street.
In a speech later today, the PM is expected to renew Tory promises to boost NHS funding and create a "seven day service" for patients.