title: Age changes in the polymer composition of collagen using molecular sieve chromatography.
mesh_terms: D000375:Aging; D000818:Animals; D002850:Chromatography, Gel; D003094:Collagen / Q000032:analysis*; D004591:Electrophoresis, Polyacrylamide Gel; D008297:Male; D051381:Rats; D012995:Solubility; D013053:Spectrophotometry; D013623:Tail; D013710:Tendons / Q000032:analysis
chemical_list: D003094:Collagen