title: 13C Magnetic resonance evidence for anisotropic molecular motion in collagen fibrils.
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000648:ultrastructure*; D002417:Cattle; D002645:Chickens; D003094:Collagen; D046911:Macromolecular Substances; D009682:Magnetic Resonance Spectroscopy; D011487:Protein Conformation; D051381:Rats; D013710:Tendons / Q000648:ultrastructure*
chemical_list: D046911:Macromolecular Substances; D003094:Collagen