E. A. Shigotarova
Penza State University, Medical Institute; Penza Regional Clinical Hospital named after N.N. Burdenko
Russian Federation

Ekaterina A. Shigotarova– MD, PhD, Assistant, Chair of Therapy, Medical Institute, Penza State University; Cardiologist, Cardiology Department, Penza Regional Clinical Hospital named after N.N. Burdenko 

Lermontova ul. 3, Penza, 440026

E. V. Dushina
Penza State University, Medical Institute
Russian Federation

Elena V. Dushina – MD, Assistant, Chair of Therapy 

Lermontova ul. 3, Penza, 440026

V. A. Galimskaya
Penza State University, Medical Institute
Russian Federation

Vera A. Galimskaya – MD, PhD, Associate Professor, Chair of Therapy 

Lermontova ul. 3, Penza, 440026

V. E. Oleynikov
Penza State University, Medical Institute
Russian Federation

Valentin E. Oleynikov – MD, PhD, Professor, Head of Chair of Therapy 

Lermontova ul. 3, Penza, 440026