Chatterjee, K., A. Dutta, P. K. Mandal, A. K. Basu, S. R. Rahaman, and S. Sen. “Current Recommendations on MMRV Combination Vaccine in India”. International Journal of Health and Clinical Research, vol. 4, no. 5, Mar. 2021, pp. 264-7, https://ijhcr.com/index.php/ijhcr/article/view/1130.