When a positive pregnancy test isn't.
Norman
R J
RJ
D006063:Chorionic Gonadotropin / Q000032:analysis*; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests; D011259:Pregnancy Tests, Immunologic
D006063:Chorionic Gonadotropin