title: Effect of cannabis & opium on the testis of the pigeon Columba livia Gmelin.
mesh_terms: D000818:Animals; D002188:Cannabis / Q000494:pharmacology*; D010856:Columbidae; D008297:Male; D009892:Opium / Q000494:pharmacology*; D013737:Testis / Q000187:drug effects*
chemical_list: D009892:Opium