Determination of human chorionic gonadotrophin by complement-fixation.
D000937:Antigen-Antibody Reactions; D002823:Chorion; D006063:Chorionic Gonadotropin; D006062:Gonadotropins; D006801:Humans; D055633:Immune System Phenomena
D006063:Chorionic Gonadotropin; D006062:Gonadotropins
ANTIGEN-ANTIBODY REACTIONS; GONADOTROPINS, CHORIONIC