1. Pediatric Research and Clinical Center for Infectious Diseases; Academy of Postgraduate Education of Federal Scientific Research Center of the Federal Medical and Biological Agency
2. Saint Petersburg Postgraduate Institute of Medical experts Labor and Social Protection
3. Academy of Postgraduate Education of Federal Scientific Research Center of the Federal Medical and Biological Agency; Belgorod State National Research University
4. State Healthcare Institution Saratov City Clinical Hospital No. 9
5. Pediatric Research and Clinical Center for Infectious Diseases