Gastrointestinal endoscopy.
Ruse
W
W
D003365:Costs and Cost Analysis; D016099:Endoscopy, Gastrointestinal / Q000191:economics / Q000706:statistics & numerical data*; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000191:economics; D006801:Humans; D011859:Radiography