Bushmanova, GM, MV Supotnitskiy, and BV Churin. 2020. “Primary Chronic Septic Endocarditis As an Alternative to Acute Rheumatic Fever - the Obligate Component of the Multicomponent Noncyclic Pandemic of the 21st Century”. Journal of Cardiovascular Medicine and Cardiology 7 (3):242-48. https://doi.org/10.17352/2455-2976.000146.