Naveenreddy, S., Chaudhuri, J. R., Mridula, K. R., Balaraju, B. and Bandaru, V. S. (2021) “Association of serum 25-hydroxyvitamin D in COVID-19: A study from India”, Nepal Mediciti Medical Journal, 2(1), pp. 26–33. doi: 10.3126/nmmj.v2i1.37218.