Lhendup, Karma, and Yeshey Penjore. “An Empirical Study on Factors Responsible for Rheumatic Heart Disease (RHD) and Its Severity Levels Amongst the Bhutanese Populace”. Journal of Cardiology and Cardiovascular Medicine 7, no. 2 (August 30, 2022): 068–073. Accessed December 5, 2025. https://www.cardiologymedjournal.com/index.php/jccm/article/view/jccm-aid1136.