Survey of first-contact care out-of-hours: securing and maintaining cooperation of general practitioners.
D003299:Cooperative Behavior; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data; D004739:England; D005194:Family Practice / Q000706:statistics & numerical data; D006296:Health Services / Q000706:statistics & numerical data*; D006801:Humans; D010821:Physicians, Family / Q000523:psychology*; D013647:Task Performance and Analysis; D013997:Time Factors; D014505:Urban Population