title: Diagnosis of ectopic pregnancy by radioreceptor assay for chorionic gonadotrophin.
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011271:Pregnancy, Ectopic / Q000175:diagnosis*; D011869:Radioligand Assay
chemical_list: D006063:Chorionic Gonadotropin