Sedhain, A., Bhattarai, G. R., Yadav, S. R., Pandey, B. R. and Pant, T. P. (2020) “Geographic and Seasonal Variation of Vitamin D: A Retrospective Study in Two Centers of Nepal”, Journal of Nepal Health Research Council, 18(1), pp. 103-107. doi: 10.33314/jnhrc.v18i1.1873.