E. N. Solodinina
Central Clinical Hospital with a Polyclinic of Presidential Administration of the Russian Federation
Russian Federation

Elena N. Solodinina – Doct. of Med. Sci., Head of the Endoscopic Department 

15, Marshala Timoshenko str., Moscow, 121359

N. V. Fomicheva
Central Clinical Hospital with a Polyclinic of Presidential Administration of the Russian Federation
Russian Federation

Nataliya V. Fomicheva – Endoscopist of the Endoscopic Department

15, Marshala Timoshenko str., Moscow, 121359. Phone: +7-903-592-24-64.

D. N. Ulyanov
European Medical Center
Russian Federation

Dmitry N. Ulyanov – Cand. of Med. Sci., Head of the Endoscopic Department 

35, Schepkina str., Moscow, 129090