3d image of calcitriol skeletal formula

calcitriol vitamin kidney dihydroxycholecalciferol hormone hormonal therapy replacement function action endocrine endocrinology level prohormone analogue receptor calcium intestine low blood hyperparathyroidism kidney disease hypoparathyroidism osteoporosis osteomalacia familial hypophosphatemia urinary tract infections generic medication hypocalcaemia rickets renal osteodystrophy chronic corticosteroid-induced supplement biological activity bioactive nutrient prescription drug food additive nutraceutica dietary vitamin molecule molecular formula skeletal 3d