title: Two cases of combined intrauterine and extrauterine pregnancy.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D003949:Diagnostic Techniques, Surgical; D005260:Female; D006801:Humans; D010048:Ovarian Cysts / Q000175:diagnosis; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000175:diagnosis* / Q000601:surgery; D014463:Ultrasonography