Comment on Gonvers, "appropriateness and diagnostic yield of upper gastrointestinal endoscopy".
Minoli
G
G
Prada
A
A
D004415:Dyspepsia / Q000209:etiology* / Q000628:therapy; D016099:Endoscopy, Gastrointestinal / Q000592:standards / Q000706:statistics & numerical data*; D006801:Humans; D017410:Practice Guidelines as Topic