P. Butkevich - Dr. Sc. (Biol.), Leading Research Scientist, I.P. Pavlov Institute of Physiology, RAS, St.-Petersburg; Associate Professor, Saint Petersburg State Pediatric Medical University. E-mail: irinabutkevich@yandex.ru
V. A. Mikhailenko - Ph.D. (Biol.), Senior Research Scientist, I.P. Pavlov Institute of Physiology, RAS, St.-Petersburg. E-mail: viktormikhailenko@yandex.ru
T. N. Shimaraeva - Ph.D. (Biol.), Associate Professor, Saint Petersburg State Pediatric Medical University. E-mail: 3706381@mail.ru