title: Progonadal effect of melatonin on dark exposed or blinded male toads, Bufo melanostictus.
mesh_terms: D000818:Animals; D001766:Blindness / Q000503:physiopathology*; D002025:Bufonidae / Q000502:physiology*; D002467:Cell Nucleus / Q000648:ultrastructure; D003624:Darkness; D007985:Leydig Cells / Q000648:ultrastructure; D008297:Male; D008550:Melatonin / Q000494:pharmacology*; D013091:Spermatogenesis / Q000187:drug effects; D013737:Testis / Q000187:drug effects* / Q000502:physiology
chemical_list: D008550:Melatonin