Prajapati, Dipanker, et al. “Epidemiological Survey of Rheumatic Fever, Rheumatic Heart Disease and Congenital Heart Disease Among School Children in Kathmandu Valley of Nepal”. Nepalese Heart Journal, vol. 10, no. 1, Feb. 2014, pp. 1-5, doi:10.3126/njh.v10i1.9738.