title: Abdominal pain in first trimester pregnancy.
authors.affiliation: Harvard Affiliated Emergency Medicine Residency, Boston, Massachusetts, USA.
authors.forename: Todd
authors.initials: T
authors.lastname: Thomsen
authors.forename: David F M
authors.initials: DF
authors.lastname: Brown
authors.forename: Eric S
authors.initials: ES
authors.lastname: Nadel
mesh_terms: D015746:Abdominal Pain / Q000175:diagnosis* / Q000000981:diagnostic imaging; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007813:Laparotomy / Q000379:methods; D010147:Pain Measurement; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011272:Pregnancy, Multiple; D011274:Pregnancy, Tubal / Q000000981:diagnostic imaging* / Q000601:surgery*; D018570:Risk Assessment; D012720:Severity of Illness Index; D016216:Ultrasonography, Prenatal