L. V. Karavaeva
Saratov State Medical University named after V. I. Razumovsky
Russian Federation

112, Bolshaya Kazachia str., Saratov, Saratov Region, Privolzhsky Federal District, 410012

U. A. Matvienko
Saratov State Medical University named after V. I. Razumovsky
Russian Federation

112, Bolshaya Kazachia str., Saratov, Saratov Region, Privolzhsky Federal District, 410012

A. M. Poluyanov
I. M. Sechenov First Moscow State Medical University (Sechenov University)
Russian Federation

8/2, Trubetskaya str., Mosсow, 119048

N. A. Durnova
Saratov State Medical University named after V. I. Razumovsky; I. M. Sechenov First Moscow State Medical University (Sechenov University)
Russian Federation

112, Bolshaya Kazachia str., Saratov, Saratov Region, Privolzhsky Federal District, 410012; 
8/2, Trubetskaya str., Mosсow, 119048