Only half of the NHS’s new regional health service bodies will be fully ready to start work when the changes come into effect today.
Just 106 of the 211 Clinical Commissioning Groups (CCGs) are "fully authorised", said NHS England.
The new groups are led by GPs and other clinicians who will take on responsibility for commissioning local hospital, community health and mental health services.
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Temperatures will be on the warm side tomorrow as much of the country looks forward to a fine bright start to the day.