A. I. Olesin
I.I. Mechnikov North-Western State Medical University
Russian Federation

Prof. Alexander I. Olesin, MD, DSc, Professor, Department of Hospital Therapy and Cardiology

41, Kirochnaya Street, Saint Petersburg, 191015 

I. V. Konstantinova
I.I. Mechnikov North-Western State Medical University
Russian Federation

Dr. Irina V. Konstantinova, MD, PhD, Associate Professor, Department of Hospital Therapy and Cardiology

41, Kirochnaya Street, Saint Petersburg, 191015 

N. N. Tyuteleva
I.I. Mechnikov North-Western State Medical University
Russian Federation

Dr. Natalya N. Tyuteleva, MD, PhD, Assistant Professor, Department of Hospital Therapy and Cardiology

41, Kirochnaya Street, Saint Petersburg, 191015 

V. S. Ivanov
St. Elizabeth's Hospital
Russian Federation

Dr. Vladimir S. Ivanov, MD, PhD. Head of the Department of Cardiology 

14, Vavilova Street, Saint Petersburg, 195257