I. Borodulin, Vladimir, Sergey P. Glyantsev, and Aleksey V. Topolyanskiy. β€œThe Lost Page of the History of the USSR Cardiology: Moscow Professors Ya.G. Etinger (1887–1951) and V.E. Nezlin (1894–1975)”. History of Medicine 2, no. 3 (June 30, 2015). Accessed November 22, 2024. https://historymedjournal.com/HOM/index.php/medicine/article/view/101.