Sex ratio in the golden hamster before uterine implantation.
D000818:Animals; D006224:Cricetinae; D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D006801:Humans; D008647:Mesocricetus; D012727:Sex Characteristics; D012744:Sex Ratio
EMBRYO; SEX CHARACTERISTICS