title: A reply to D. Wildemeersch's erring reply. Three-year efficacy and acceptability of the GyneFix 200 intrauterine system.
authors.forename: Irving
authors.initials: I
authors.lastname: Sivin
mesh_terms: D015986:Confounding Factors, Epidemiologic; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D011247:Pregnancy; D018873:Pregnancy Rate