title: Is the rising incidence of ectopic pregnancy unexplained?
authors.affiliation: Department of Obstetrics and Gynecology, University of Amsterdam, The Netherlands.
authors.forename: W M
authors.initials: WM
authors.lastname: Ankum
mesh_terms: D005260:Female; D006801:Humans; D015994:Incidence; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000453:epidemiology* / Q000209:etiology*