the present knowledge on the metabolic pathway of vitamin d and its metabolites led us to consider that the basic pathogenic defect appears as a consequence of an intestinal malabsorption of phosphates due to an altered synthesis of 1,25-dihydroxycholecalciferol or its precursor 25-hydroxycholecalciferol .
C0014695
vitamin d
C0024523
intestinal malabsorption