Anitha A, Poovathinal SA, Viswambharan V, Thanseem I, Vasu MM, M. R. Cross-sectional study reveals a high prevalence of vitamin D deficiency among healthy school children in central Kerala, India. Int J Contemp Pediatr [Internet]. 2019 Feb. 23 [cited 2025 Nov. 25];6(2):867-71. Available from: https://www.ijpediatrics.com/index.php/ijcp/article/view/2178