title: Mechanism of action of Vitamin D.
mesh_terms: D001692:Biological Transport; D002117:Calcitriol / Q000378:metabolism; D002118:Calcium / Q000378:metabolism; D006801:Humans; D007700:Kinetics; D014807:Vitamin D / Q000378:metabolism*
chemical_list: D014807:Vitamin D; D002117:Calcitriol; D002118:Calcium