Gastrointestinal endoscopy versus radiology.
D004064:Digestive System / Q000000981:diagnostic imaging*; D016099:Endoscopy, Gastrointestinal; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D011859:Radiography; D012680:Sensitivity and Specificity