title: [In one of 100 pregnant women is the uterus empty].
authors.forename: Peter
authors.initials: P
authors.lastname: Stiefelhagen
mesh_terms: D000328:Adult; D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood; D015331:Cohort Studies; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008727:Methotrexate / Q000008:administration & dosage / Q000627:therapeutic use; D011247:Pregnancy; D011269:Pregnancy, Abdominal / Q000453:epidemiology; D011271:Pregnancy, Ectopic / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology / Q000401:mortality / Q000601:surgery; D011274:Pregnancy, Tubal / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology / Q000601:surgery; D012307:Risk Factors
chemical_list: D018997:Chorionic Gonadotropin, beta Subunit, Human; D008727:Methotrexate