Metabolism of vitamin D.
D006801:Humans; D006887:Hydroxycholecalciferols / Q000096:biosynthesis; D010281:Parathyroid Hormone / Q000494:pharmacology / Q000502:physiology; D014807:Vitamin D / Q000378:metabolism*
D006887:Hydroxycholecalciferols; D010281:Parathyroid Hormone; D014807:Vitamin D