H. A. Isaac, A. J. Hemamalini, K. Seshadri, and L. Ravichandran, “Impact of vitamin D fortified food on quality of life and emotional difficulties among adolescents – A randomized controlled trial”, Indian J Child Health, vol. 6, no. 2, pp. 56–60, Feb. 2019, doi: 10.32677/IJCH.2019.v06.i02.002.