specific binding was greater than 90 % and the affinity of the receptor for 1,25- ( oh ) 2d3 was 100 times greater than that for 25- ( oh ) d3 and 24,25- ( oh ) 2d3 and 1.0 x 10 ( 5 ) times greater than that for vitamin d3 .
C2713074
25
C0008318
vitamin d3