Association Between Serum 25-Hydroxyvitamin D Levels and Gross Motor Development in Children With Down Syndrome: An Analytical Cross-Sectional Study. Reabilitacijos mokslai [Internet]. 2026 Jun. 17 [cited 2026 Aug. 20];1(34):147-58. Available from: https://journals.lsu.lt/reabilitacijos-mokslai/article/view/2277