title: Letter: Vitamin-D metabolism in chronic renal failure.
mesh_terms: D001835:Body Weight; D002675:Child, Preschool; D004305:Dose-Response Relationship, Drug; D006801:Humans; D007676:Kidney Failure, Chronic / Q000378:metabolism*; D014807:Vitamin D / Q000008:administration & dosage / Q000097:blood / Q000378:metabolism*
chemical_list: D014807:Vitamin D