Open access endoscopy in Britain: a service in evolution.
Marshall
J B
JB
D016145:Endoscopy, Digestive System / Q000191:economics / Q000706:statistics & numerical data*; D006297:Health Services Accessibility / Q000639:trends; D006801:Humans; D018579:Patient Selection; D012017:Referral and Consultation / Q000639:trends; D013222:State Medicine / Q000639:trends; D006113:United Kingdom