Photoperiodic influences on testicular regression in the golden hamster: termination of scotorefractoriness.
D000818:Animals; D002940:Circadian Rhythm; D006224:Cricetinae / Q000502:physiology*; D006801:Humans; D008297:Male; D008647:Mesocricetus / Q000502:physiology*; D009929:Organ Size; D012621:Seasons; D013737:Testis / Q000033:anatomy & histology / Q000502:physiology*; D013997:Time Factors