title: Lesions in aged germfree Wistar rats.
mesh_terms: D000375:Aging; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D005856:Germ-Free Life; D007668:Kidney / Q000473:pathology; D008321:Mammary Glands, Animal / Q000473:pathology; D008325:Mammary Neoplasms, Experimental / Q000473:pathology*; D009393:Nephritis / Q000473:pathology*; D051381:Rats; D013945:Thymoma / Q000473:pathology*; D013950:Thymus Gland / Q000473:pathology; D013953:Thymus Neoplasms / Q000473:pathology*