Today, a Leading Researcher of the Organizational and Methodological Department of the A.V. Vishnevsky National Medical Research Center of Surgery, Doctor of Medical Sciences, Professor, Vyacheslav Petrovich Sazhin and Stanislav Valeryevich Berelavichus, a Leading Researcher of the Abdominal Surgery Department #1 of the FSBI A.V. Vishnevsky National Research Medical Center of Surgery, arrived in Kazan.