title: Temporal changes in testicular histology and steroidogenesis in juvenile bank voles (Clethrionomys glareolus, Schreber) subjected to different photoperiods.
mesh_terms: D000818:Animals; D003411:Arvicolinae / Q000033:anatomy & histology*; D008297:Male; D009929:Organ Size; D010775:Photic Stimulation; D013256:Steroids / Q000096:biosynthesis*; D013737:Testis / Q000033:anatomy & histology* / Q000378:metabolism; D013997:Time Factors
chemical_list: D013256:Steroids