title: Refractoriness to the antigonadotrophic effects of melatonin in male hamsters and its interruption by exposure of the animals to long daily photoperiods.
mesh_terms: D000818:Animals; D001284:Atrophy / Q000139:chemically induced; D006224:Cricetinae; D008027:Light; D008297:Male; D008550:Melatonin / Q000494:pharmacology*; D008647:Mesocricetus; D009929:Organ Size / Q000187:drug effects; D013737:Testis / Q000187:drug effects / Q000254:growth & development* / Q000473:pathology; D013997:Time Factors
chemical_list: D008550:Melatonin