Lakkireddy, Maheshwar, et al. “Effect of Short Term High Dose Oral Vitamin D Therapy on the Inflammatory Markers in Patients With COVID 19 Disease”. Archives of Clinical and Biomedical Research, vol. 6, no. 4, July 2022, pp. 623-30, https://fortunejournals.org/ojs/index.php/acbr/article/view/14940.