O.I. Efimov - Neurologist, Head of Pediatric Neurological Clinic «Prognoz» (St.-Petersburg). E-mail: prefish@ya.ru V.L. Efimova - Ph.D. (Ped.), Speech-language pathologist, Manager of Pediatric Therapy Center "Logoprognoz" (St.-Petersburg). E-mail: prefish@ya.ru V.P. Rozhkov - Ph.D. (Biol.), Leading Research Scientist, I.M.Sechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences (St.-Petersburg). E-mail: vlrozhkov@mail.ru