T. Zhang
Department of General Surgery of the First Moscow State Medical University. THEM. Sechenov
Russian Federation

Zhang Tong – Postgraduate student 

119992, Trubetskaya str., 8/2, Moscow 

Y. Cai
Department of General Surgery of the First Moscow State Medical University. THEM. Sechenov
Russian Federation

Cai Yuqing – Postgraduate student  

119992, Trubetskaya str., 8/2, Moscow 

E. A. Gallyamov
Department of General Surgery of the First Moscow State Medical University. THEM. Sechenov
Russian Federation

Gallyamov Eduard Abdulkhaevich – Doctor of Medical Sciences, Professor, Head of the Department

119992, Trubetskaya str., 8/2, Moscow 

A. R. Sadykov
Department of Surgery of the Russian University of Medicine of the Ministry of Health of the Russian Federation
Russian Federation

Sadykov Airat Rashidovich – Student

127006, Dolgorukovskaya str., 4, Moscow