Status 25-Hidroksivitamin D3 (25(OH)D3) dan 1,25
Dihidroksivitamin D3 (1,25(OH)2D3), Enzim 1-Hidroksilase
(CYP27B1) Serum dan Plasenta pada Wanita Hamil Aterm dan
Preterm = Serum and Placental 25-Hydroxyvitamin D3 (25(OH)D3), 1,25 Dihydroxyvitamin D3 (1,25(OH)2D3), and 1-Hydroxilase
(CYP27B1) Enzyme Status In Aterm and Preterm Labor