C. S., R., Vanaki, R., Badakali, A. V., Pol, R. R. and B. C., Y. (2016) “Efficacy of vitamin D supplementation in the treatment of severe pneumonia in children aged less than five years”, International Journal of Contemporary Pediatrics, 3(1), pp. 96–99. doi: 10.18203/2349-3291.ijcp20160138.