title: Comparative studies on spermatogenesis in the pigeon and toad as influenced by testosterone propionate and progesterone.
mesh_terms: D000818:Animals; D002025:Bufonidae / Q000033:anatomy & histology / Q000502:physiology*; D010856:Columbidae / Q000033:anatomy & histology / Q000502:physiology*; D008297:Male; D009929:Organ Size / Q000187:drug effects; D011374:Progesterone / Q000494:pharmacology*; D013045:Species Specificity; D013091:Spermatogenesis / Q000187:drug effects*; D013737:Testis / Q000166:cytology / Q000187:drug effects; D013739:Testosterone / Q000494:pharmacology*
chemical_list: D013739:Testosterone; D011374:Progesterone