1. Vasilenko Clinic of internal diseases propedeutics, gastroenterology and hepatology, medical faculty, State educational government-financed institution of higher professional education «Sechenov First Moscow state medical university», Ministry of Healthcare of the Russian Federation
2. Department of pathological anatomy, medical faculty, State educational government-financed institution of higher professional education “Sechenov First Moscow state medical university”, Ministry of Healthcare of the Russian Federation
3. Pathology department, Petrovsky National Research Center of Surgery of Russian Academy of Medical Science