Serum-chorionic-gonadotropin assay and ectopic pregnancy.
D006063:Chorionic Gonadotropin / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011271:Pregnancy, Ectopic / Q000097:blood*
D006063:Chorionic Gonadotropin