The role of the clinician in research.
D003424:Crohn Disease / Q000628:therapy; D004247:DNA; D004724:Endoscopy; D005260:Female; D005762:Gastroenterology; D006801:Humans; D010437:Peptic Ulcer / Q000628:therapy; D011247:Pregnancy; D011248:Pregnancy Complications / Q000628:therapy; D012091:Repetitive Sequences, Nucleic Acid; D012106:Research
D004247:DNA