title: Structure and packing of microfibrils in collagen.
mesh_terms: D000818:Animals; D003094:Collagen / Q000032:analysis*; D008433:Mathematics; D008954:Models, Biological; D008961:Models, Structural; D011487:Protein Conformation; D051381:Rats; D013623:Tail; D014961:X-Ray Diffraction
chemical_list: D003094:Collagen