V. E. Oleynikov
Penza State University
Russian Federation

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

Lermontova ul. 3, Penza, 440026 

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

Ekaterina A. Shigotarova – MD, PhD, Cardiologist, PRCH named after N.N. Burdenko; Assistant, Chair of Therapy, Medical Institute PSU.Lermontova ul. 3, Penza, 440026; Lermontova ul. 28,  Penza, 440026

A. V. Kulyutsin
Penza State University; Penza Regional Clinical Hospital named after N.N. Burdenko
Russian Federation

Aleksey V. Kulyutsin – MD, PhD, Head of Department of Cardiology with the Intensive Care Unit PRCH named after N.N. Burdenko; Assistant Professor, Chair of Therapy, Medical Institute PSU.

Lermontova ul. 3, Penza, 440026; Lermontova ul. 28,  Penza, 440026

E. V. Dushina
Penza State University
Russian Federation

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

Lermontova ul. 3, Penza, 440026 

J. A. Guskova
Penza State University
Russian Federation

Julia A. Guskova – MD, Assistant, Chair of Therapy, Medical Institute.

Lermontovaul. 3, Penza, 440026