A.A. KOYDAN, I.V. BATALIN, D.V. OVCHARENKO, A.A. VORONKOV Pavlov First Saint Petersburg State Medical University, 6-8 Lev Tolstoy Str., Saint Petersburg, Russian Federation, 197022  Koydan A.A. ― postgraduate student of the Faculty Surgery Department, cardiovascular surgeon in Scientific Research Institute of Surgery and Emergency Medicine, tel. +7-931-279-67-67, e-mail: kojdan.anna@mail.ru Batalin I.V. ― Cand. Med. Sc., […]