1. 1 Department of Public Health Management , Shupyk National Healthcare University of Ukraine , Kyiv , Ukraine
2. 2 Center of Science, Organization of Quality Control and Safety of Medical Activity, Feofaniya Clinical Hospital, State Management of Affairs of Ukraine , Kyiv , Ukraine
3. 3 Department of Propaedeutic of Internal Medicine Nо 2 , Bogomolets National Medical University , Kyiv , Ukraine