title: Separation of human enamel structures by density fractionation.
mesh_terms: D005591:Chemical Fractionation / Q000379:methods; D003743:Dental Enamel / Q000032:analysis* / Q000648:ultrastructure; D003746:Dental Enamel Proteins / Q000032:analysis; D005459:Fluorides / Q000032:analysis; D006801:Humans; D008274:Magnesium / Q000032:analysis; D012964:Sodium / Q000032:analysis
chemical_list: D003746:Dental Enamel Proteins; D012964:Sodium; D008274:Magnesium; D005459:Fluorides