title: Chemistry, structure and localization of different collagens: introduction.
mesh_terms: D000818:Animals; D002356:Cartilage / Q000032:analysis; D003094:Collagen / Q000032:analysis*; D003238:Connective Tissue / Q000032:analysis; D006801:Humans; D046911:Macromolecular Substances; D008970:Molecular Weight
chemical_list: D046911:Macromolecular Substances; D003094:Collagen