Oleg Tkachenko
Head of the Endoscopy Department
endoscopist
research fellow of the Scientific Department of Intraluminal Endoscopy
NMRC of Oncology named after N.N. Petrov of MoH of Russia
St. Petersburg
Head of the Endoscopy Department
endoscopist
research fellow of the Scientific Department of Intraluminal Endoscopy
NMRC of Oncology named after N.N. Petrov of MoH of Russia
St. Petersburg