title: Unilateral tubal twin pregnancy following in vitro fertilization and embryo transfer.
mesh_terms: D000328:Adult; D004624:Embryo Transfer; D005184:Fallopian Tube Diseases / Q000150:complications; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007247:Infertility, Female / Q000209:etiology; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000209:etiology* / Q000473:pathology