title: Ectopic pregnancy.
authors.forename: E
authors.initials: E
authors.lastname: Kessel
mesh_terms: D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000209:etiology*; D012307:Risk Factors; D013246:Sterilization, Tubal / Q000009:adverse effects*