pieces of epiphyseal cartilage obtained from 4-day-old vitamin d-deficient rats were incubated for 15 or 60 min with [ 3h ] -24,25 ( oh ) 2d3 in the presence or absence of 100-fold excess of 25 ( oh ) d3 , 1,25 ( oh ) 2d3 , or 24r,25 ( oh ) 2d3 .
C0042870
vitamin d-deficient
C2713074
25 ( oh ) d3