Can you have  a pain-free endoscopy?
D053705:Capsule Endoscopes / Q000009:adverse effects; D000075202:Contraindications; D016099:Endoscopy, Gastrointestinal / Q000009:adverse effects / Q000379:methods*; D006801:Humans; D007415:Intestinal Obstruction / Q000150:complications; D008875:Middle Aged; D010146:Pain / Q000517:prevention & control*