Parlak, M. E., E. Oz, O. Kucukkelepce, and H. Yildiz. “Knowledge Levels of Mothers With 0-3 Years-Old Children about Vitamin D and Breast Milk”. Annals of Medical Research, vol. 30, no. 3, Mar. 2023, pp. 316-21, http://www.annalsmedres.org/index.php/aomr/article/view/4370.