title: Spontaneous heterotopic pregnancy remains a diagnostic enigma.
authors.affiliation: Department of Obstetrics and Gynaecology, Royal Glamorgan Hospital, Llantrisant, South Wales CF72 8XR, UK. Carolyn.davies@pr-tr.wales.nhs.uk
authors.forename: J O
authors.initials: JO
authors.lastname: Amagada
authors.forename: S J
authors.initials: SJ
authors.lastname: Vine
mesh_terms: D000328:Adult; D005187:Fallopian Tubes / Q000601:surgery; D005260:Female; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome; D011274:Pregnancy, Tubal / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D014463:Ultrasonography