title: Acute effects of altered photoperiods on the onset of ovulation in gonadotropin-treated immature rats.
mesh_terms: D000818:Animals; D004966:Estrogens, Conjugated (USP) / Q000494:pharmacology*; D005260:Female; D008027:Light; D010060:Ovulation / Q000187:drug effects; D051381:Rats; D013997:Time Factors
chemical_list: D004966:Estrogens, Conjugated (USP)