Lack of diurnal variation of chorionic gonadotrophin levels in pregnancy serum.
D002823:Chorion; D006063:Chorionic Gonadotropin / Q000097:blood*; D002940:Circadian Rhythm; D005260:Female; D006062:Gonadotropins; D006801:Humans; D011247:Pregnancy / Q000097:blood
D006063:Chorionic Gonadotropin; D006062:Gonadotropins
GONADOTROPINS, CHORIONIC/in blood; PREGNANCY/blood in