A. Andriyanova, Elena, Arkady I. Zavialov, Svetlana V. Rajkova, and Valery V. Suvorov. 2018. “The Contribution of Medical Communities and Rural Doctors to the Development of Sanitary Care in the Saratov Province in the Second Half of the 19th and the Beginning of the 20th Century”. History of Medicine 5 (4). http://13.200.237.241/HOM/index.php/medicine/article/view/227.