Pineal-mediated regression of the reproductive organs of female hamsters exposed to natural photoperiods during the winter months.
D000818:Animals; D001284:Atrophy; D001344:Autopsy; D001835:Body Weight; D003338:Corpus Luteum / Q000033:anatomy & histology; D006224:Cricetinae; D005260:Female; D008027:Light; D009929:Organ Size; D010053:Ovary / Q000033:anatomy & histology; D010775:Photic Stimulation; D010870:Pineal Gland / Q000254:growth & development* / Q000502:physiology; D012621:Seasons; D014599:Uterus / Q000033:anatomy & histology