D. G. Naumov
St. Petersburg Research Institute of Phthisiopulmonology; Saint-Petersburg State University 2–4 Ligovsky pr., St. Petersburg, 191036, Russia; 7/9 Universitetskaya embankment, St. Petersburg, 199034, Russia
Russian Federation

MD, PhD, leading researcher, deputy director for traumatology and orthopedics;
Assistant professor of the Department of General Surgery

A. Yu. Mushkin
St. Petersburg Research Institute of Phthisiopulmonology; Pavlov First Saint Petersburg State Medical University 2–4 Ligovsky pr., St. Petersburg, 191036, Russia; 6–8 L’va Tolstogo str., St. Petersburg, 197022, Russia
Russian Federation

DMSc, Prof., leading researcher, Head of the department of vertebrology, traumatology-orthopedics;
Professor of the Department of traumatology and orthopedics

A. A. Vishnevsky
St. Petersburg Research Institute of Phthisiopulmonology 2–4 Ligovsky pr., St. Petersburg, 191036, Russia
Russian Federation

DMSc, leading researcher