G. G. Khubulava
Military Medical Academy
Russian Federation

Khubulava Gennadiy G. - Dr. Sci. (Med.), Professor, Academician of the Russian Academy of Sciences, Head of the First Department of Surgery (improvements of doctors) named after P.A. Kupriyanov, Military Medical Academy.

Saint Petersburg.

M. A. Askerov
Mariinsky hospital
Russian Federation

Askerov Magomedemin A. - Cand. of Sci. (Med.), Head of department cardio surgery, Mariinsky hospital.

Saint Petersburg.

A. V. Krivenzov
Mariinsky hospital
Russian Federation

Kriventchov Alexander V. - Cand. of Sci. (Med.), cardio surgeon, cardio surgery department Mariinsky Hospital.

Saint Petersburg.

S. V. Sadovoi
Military Medical Academy
Russian Federation

Sadovoi Sergei V. - graduate student, First Department of Surgery (improvements of doctors) named after P.A. Kupriyanov, Military Medical Academy.

6, Academika Lebedeva str., Saint Petersburg, 194044.

E. K. Gavrilov
Military Medical Academy
Russian Federation

Gavrilov Evgenii K. - Cand. of Sci. (Med.), teacher of the First Department of Surgery (improvements of doctors) named after P.A. Kupriyanov, Military Medical Academy.

6, Academika Lebedeva str., Saint Petersburg, 194044.