a long-term crossover trial of the vitamins d in 6 patients with hypoparathyroidism suggested that relative potencies were as follows ( assigning to vitamin d an arbitrary potency of l ) : vitamin d2 ( or d3 ) l : dihydrotachysterol ( dht ) 3 : calcifediol 10 : alfacalcidol 750 : calcitriol 1500 .
C0020626
hypoparathyroidism
C0014695
vitamin d2