title: Diagnosis before treatment.
authors.forename: G
authors.initials: G
authors.lastname: Terry
mesh_terms: D000005:Abdomen; D000700:Analgesics; D006801:Humans; D010146:Pain / Q000209:etiology*; D010439:Peptic Ulcer Perforation / Q000150:complications / Q000175:diagnosis; D011300:Preoperative Care
chemical_list: D000700:Analgesics