Spinal nerve root degeneration in aging laboratory rats: a light microscopic study.
D000367:Age Factors; D000818:Animals; D001369:Axons; D005260:Female; D008297:Male; D009410:Nerve Degeneration / Q000528:radiation effects; D011830:Radiation Effects; D051381:Rats; D013126:Spinal Nerve Roots / Q000473:pathology* / Q000528:radiation effects; D013194:Staining and Labeling; D013997:Time Factors