N. M. Nikitina
Saratov State Medical University named after V.I. Razumovsky. Bolshaya Kazachya str., 112, Saratov, 410012 Russia
Russian Federation

MD, PhD, Professor of Chair of Hospital Therapy, Medical Faculty, Saratov State Medical University named after V.I. Razumovsky

T. A. Romanova
Saratov State Medical University named after V.I. Razumovsky. Bolshaya Kazachya str., 112, Saratov, 410012 Russia
Russian Federation

MD, PhD Student of Chair of Hospital Therapy, Medical Faculty, Saratov State Medical University named after V.I. Razumovsky

I. A. Afanas'ev
Saratov State Medical University named after V.I. Razumovsky. Bolshaya Kazachya str., 112, Saratov, 410012 Russia
Russian Federation

MD, PhD Student of Chair of Hospital Therapy, Medical Faculty, Saratov State Medical University named after V.I. Razumovsky

M. A. Tyapkina
Saratov State Medical University named after V.I. Razumovsky. Bolshaya Kazachya str., 112, Saratov, 410012 Russia
Russian Federation

MD, PhD, Teaching Assistant of Chair of Hospital Therapy, Medical Faculty, Saratov State Medical University named after V.I. Razumovsky

A. P. Rebrov
Saratov State Medical University named after V.I. Razumovsky. Bolshaya Kazachya str., 112, Saratov, 410012 Russia
Russian Federation

MD, PhD, Professor, Head of Chair of Hospital Therapy, Medical Faculty, Saratov State Medical University named after V.I. Razumovsky