title: Ultrastructure of fossil dentinal collagen.
mesh_terms: D000085:Acetates; D003094:Collagen / Q000032:analysis*; D003804:Dentin / Q000032:analysis*; D010163:Paleontology; D010772:Phosphotungstic Acid
chemical_list: D000085:Acetates; D010772:Phosphotungstic Acid; D003094:Collagen