Al Mahdi, K., Albrahim, M., Alkhars, F., Alkhalifah, O., Alaithan, R. and Alhajri, F. 2018. Relationship between vitamin D deficiency and atopy in children. International Journal of Contemporary Pediatrics. 5, 5 (Aug. 2018), 1705–1709. DOI:https://doi.org/10.18203/2349-3291.ijcp20182946.