Gestational age- and season-specific reference intervals for 25-hydroxyvitamin D (nmol/L) in women with vaginal birth and no possible vitamin D-linked complications in pregnancy.

Gestational age- and season-specific reference intervals for 25-hydroxyvitamin D (nmol/L) in women with vaginal birth and no possible vitamin D-linked complications in pregnancy.针对经阴道分娩且妊娠期间无维生素D相关并发症的女性，其25-羟维生素D（25-hydroxyvitamin D，单位：nmol/L）的孕周与季节特异性参考区间