[Critical study of detection and determination of placental gonadotrophin on Rana esculenta].
D000818:Animals; D002823:Chorion; D006063:Chorionic Gonadotropin; D005260:Female; D006062:Gonadotropins; D011258:Pregnancy Tests; D011893:Rana esculenta
D006063:Chorionic Gonadotropin; D006062:Gonadotropins
GONADOTROPINS, CHORIONIC; PREGNANCY TESTS