It has been recently claimed that polymorphism for the vitamin D receptor ( VDR ) influences several aspects of calcium and bone metabolism .
it has been recently claimed that polymorphism for the vitamin d receptor ( vdr ) influences several aspects of calcium and bone metabolism .
O O O O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O O O O B-atom O B-tissue O O