I. Borodulin, Vladimir, Konstantin K. Vasilyev, Mikhail V. Poddubny, and Aleksey V. Topolyanskiy. 2018. “On the History of National Medicine: Vasily Parmenovich Obraztsov (1851–1920)”. History of Medicine 5 (1). http://www.historymedjournal.com/index.php/medicine/article/view/192.