title: Collagen metabolism in skin and periodontal ligament of rats: effect of aging and irradiation.
mesh_terms: D000375:Aging; D000818:Animals; D003094:Collagen / Q000378:metabolism* / Q000528:radiation effects*; D005214:Fast Neutrons; D006909:Hydroxyproline / Q000378:metabolism; D008297:Male; D010513:Periodontal Ligament / Q000378:metabolism* / Q000528:radiation effects*; D011392:Proline / Q000378:metabolism; D051381:Rats; D012867:Skin / Q000378:metabolism* / Q000528:radiation effects*; D014316:Tritium
chemical_list: D014316:Tritium; D003094:Collagen; D011392:Proline; D006909:Hydroxyproline