1. National Medical Research Center named after V.A. Almazov, Saint-Petersburg
2. Pediatric Research and Clinical Center for Infectious Diseases, Saint-Petersburg; Saint-Petersburg State Pediatric Medical University, Saint-Petersburg
3. North-Western State Medical University named after I.I. Mechnikov, Saint-Petersburg
4. First Saint-Petersburg State Medical University named after academician I.P. Pavlov, Saint-Petersburg