Effect of feeding ethinyloestradiol for various periods before mating on reproduction in the hamster.
D000284:Administration, Oral; D000818:Animals; D001723:Birth Rate; D003307:Copulation / Q000187:drug effects; D006224:Cricetinae; D010064:Embryo Implantation / Q000187:drug effects; D004997:Ethinyl Estradiol / Q000008:administration & dosage* / Q000494:pharmacology; D005260:Female; D010060:Ovulation / Q000187:drug effects; D011247:Pregnancy / Q000187:drug effects; D012098:Reproduction / Q000187:drug effects*; D013997:Time Factors
D004997:Ethinyl Estradiol