P. Yu. Turkin
Pirogov Russian National Research Medical University;
Russian Federation

Pavel Yu. Turkin, Cand. Sci. (Med.), Surgeon-Phlebologist, Associate Professor, Department of Intermediate Level Surgery No. 2 

1, Ostrovityanov St., Moscow, 117997

I. M. Dizengof
Pirogov Russian National Research Medical University; Central Clinical Hospital of St. Alexis Metropolitan of Moscow of the Moscow Patriarchy of the Russian Orthodox Church;
Russian Federation

Igor M. Dizengof, Cand. Sci. (Med.), Coloproctologist, Assistant of the Department of Faculty Surgery No. 2; Deputy Chief Physician for Surgery 

1, Ostrovityanov St., Moscow, 117997;
27, Leninsky Ave., Moscow, 119071 

G. A. Varich
Pirogov Russian National Research Medical University
Russian Federation

George A. Varich, Cand. Sci. (Med.), Associate Professor of the Department of Faculty Surgery No. 2 

1, Ostrovityanov St., Moscow, 117997