Reema Bhushan, Prakriti Gupta, and Reena Jain. “Role Of Interleukin 6, Ferritin, Troponin I, Procalcitonin and D Dimer in COVID 19: A Tertiary Care Centre Study In Central India”. International Journal of Health and Clinical Research, vol. 4, no. 18, Oct. 2021, pp. 138-42, https://www.ijhcr.com/index.php/ijhcr/article/view/2927.