N. A. Karoli
V.I.Razumovskiy Saratov State Medical University, Healthcare Ministry of Russia: 112, Bol. Kazach'ya str., Saratov, 410012, Russia
Russian Federation

MD, Professsor at Department of Hospital Internal Medicine, Medical Faculty, V.I.Razumovskiy Saratov State Medical University, Healthcare Ministry of Russia; tel.: (917) 213-69-86;

A. V. Borodkin
V.I.Razumovskiy Saratov State Medical University, Healthcare Ministry of Russia: 112, Bol. Kazach'ya str., Saratov, 410012, Russia
Russian Federation

PhD student at Department of Hospital Internal Medicine, Medical Faculty, V.I.Razumovskiy Saratov State Medical University, Healthcare Ministry of Russia; tel.: тел.: (917) 981-32-70;

A. P. Rebrov
V.I.Razumovskiy Saratov State Medical University, Healthcare Ministry of Russia: 112, Bol. Kazach'ya str., Saratov, 410012, Russia
Russian Federation

MD, Professor, Head of Department of Hospital Internal Medicine, Medical Faculty, V.I.Razumovskiy Saratov State Medical University, Healthcare Ministry of Russia; tel.: (845) 249-14-37;