pregnant rats were injected intrajugularly with 2500 i.u . human chorionic gonadotropin ( hcg ) toward the end of gestation ( days 18-19 ) and 7.0 pmoles of tritiated 25-hydroxyvitamin d3 [ ( 3h ] 25 ( oh ) d3 ) the following day .
C0006657
25-hydroxyvitamin d3
C2713074
25 ( oh ) d3