Y. Guo, L. Yu, Y.-H. Deng, H.-J. Ke, and J.-L. Wu, “Associations between serum 25-hydroxyvitamin D levels and allergic sensitization in early childhood”, Allergol Immunopathol, vol. 48, no. 1, pp. 84–89, Jan. 2020, Accessed: Apr. 23, 2026. [Online]. Available: https://all-imm.com/index.php/aei/article/view/260