The NHS in London faces a looming 'crisis' because of a shortage of money, nurses and doctors, according to a leading health charity.
The problem in London is said to be far worse than anywhere else in the UK because soaring house prices make it harder to recruit key staff.
The closure of Accident & Emergency departments, longer GP waiting times and the performance of some hospital trusts has made the NHS in London a major election issue.
The chief executive of the King's Fund, an influential health think-tank, claimed London's growing population was putting pressure on a health service already under stress.
Chris Ham said the closure of A&E departments at Chase Farm, Central Middlesxex and Hammersmith hospitals had increased the strain on neighbouring casualty units.
Mr Ham said despite the problems, the health service in London functioned well in many areas and more money was not the only answer.