title: Collagen; ultrastructure and its relation to mechanical properties as a function of ageing.
mesh_terms: D000375:Aging; D000818:Animals; D001696:Biomechanical Phenomena; D003094:Collagen; D008853:Microscopy; D008954:Models, Biological; D011487:Protein Conformation; D051381:Rats; D013314:Stress, Mechanical; D013623:Tail; D013710:Tendons
chemical_list: D003094:Collagen