1. Pirogov City Clinical Hospital No. 1, Moscow Department of Health; Research Institute of Clinical Surgery, N. I. Pirogov Russian National Research Medical University, Ministry of Health of Russia
2. Pirogov City Clinical Hospital No. 1, Moscow Department of Health
3. V.A. Negovsky Research Institute of General Reanimatology of the Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology; Central Research Institute of Epidemiology of the Federal Service for Serveillance on Consumer Rights Protection and Human Wellbeing