Gastrointestinal diagnostic tests (getting ready for certification).
D002568:Certification; D019411:Clinical Laboratory Techniques; D004509:Education, Nursing, Continuing; D004521:Educational Measurement; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D010808:Physical Examination; D011859:Radiography