V. V. Davydenko
Pavlov First Saint Petersburg State Medical University; City Polyclinic No. 39
Russian Federation

Vladimir V. Davydenko, Dr. Sci. (Med.), Professor of the Department of Surgery Hospital No. 2 with a Clinic; Head of the Center for Outpatient Phlebology 

6–8, Lev Tolstoy St., St Petersburg, 197022;
36, Furshtatskaya St., St Petersburg, 191123

A. N. Galileeva
Pavlov First Saint Petersburg State Medical University; City Polyclinic No. 39
Russian Federation

Alla N. Galileeva, Cand. Sci. (Med.), Associate Professor of the Department of Surgery Hospital No. 2 with a clinic; Phlebologist, Surgeon 

6–8, Lev Tolstoy St., St Petersburg, 197022;
36, Furshtatskaya St., St Petersburg, 191123

O. V. Genzik
City Polyclinic No. 39
Russian Federation

Olga V. Genzik, Chief Physician 

36, Furshtatskaya St., St Petersburg, 191123

O. S. Monaenkova
Pavlov First Saint Petersburg State Medical University
Russian Federation

Olga S. Monaenkova, Student of the Medical Faculty 

6–8, Lev Tolstoy St., St Petersburg, 197022

G. L. Khartakhoyeva
Pavlov First Saint Petersburg State Medical University
Russian Federation

Galina L. Khartakhoyeva, Student of the Medical Faculty 

6–8, Lev Tolstoy St., St Petersburg, 197022