C. N. Nganou–Gnindjio, J. Boombhi, G. Sadeu Wafeu, L. Ndengue Ebogo, F. E. Ndongo Owona, and S. Kingue, “Prevalence and Associated Factors of Mitral Regurgitation in Severe Hypertension: A Cross-Sectional Echocardiographic Study”, Health Sci. Dis., vol. 21, no. 11, Oct. 2020.