title: Letter: Vitamin-D metabolism in chronic renal failure.
mesh_terms: D006801:Humans; D006887:Hydroxycholecalciferols / Q000172:deficiency; D007676:Kidney Failure, Chronic / Q000150:complications / Q000378:metabolism*; D010018:Osteomalacia / Q000209:etiology; D014807:Vitamin D / Q000378:metabolism*; D014808:Vitamin D Deficiency / Q000150:complications / Q000209:etiology
chemical_list: D006887:Hydroxycholecalciferols; D014807:Vitamin D