Kumar Sarkar, M., R. Mishra, P. Pandya, A. A. Chellani, and N. Ghosh. “Recurrent Rheumaticactivity in Rheumatic Heart Disease”. International Journal of Medical Research and Review, Vol. 4, no. 3, Mar. 2016, pp. 353-6, doi:10.17511/ijmrr.2016.i03.11.