A study on morphological changes in the testes of old albino rats.
D000236:Adenoma / Q000473:pathology; D000367:Age Factors; D000818:Animals; D005856:Germ-Free Life; D006965:Hyperplasia; D007985:Leydig Cells; D008297:Male; D051381:Rats; D013736:Testicular Neoplasms / Q000473:pathology; D013737:Testis / Q000473:pathology*