A group of 140 senior doctors have written to David Cameron expressing concern over plans to close several accident and emergency units in west London.
In an open letter, the doctors said they have yet to see evidence that plans to centralise and downgrade A&E services are beneficial to patients.
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John Cantlie, who worked for a number of Fleet Street newspapers, is thought to have been taken hostage in November 2012.
The union published a 'no show' league table for last year the worst offenders for cancellations.
Zalkalns was jailed in his native Latvia for eight years in 1988 after he admitted killing his wife with a piece of electrical equipment.