Vladimir M. Kenis
H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery of the Ministry of Health of the Russian Federation; I.I. Mechnikov North-Western State Medical University
Russian Federation

MD, PhD, DSci., Professor, Deputy Director, Head of department of foot and ankle surgery, neuroorthopedics and skeletal dysplasias, H.Turner National Medical Research Center for Сhildren’s Orthopedics and Trauma Surgery of the Ministry of Health of the Russian Federation, Saint-Petersburg, 196603, Russian Federation; Professor of the Department of Pediatric Traumatology and Orthopedics, I.I. Mechnikov North-Western State Medical University, Saint Petersburg, 191015, Russian Federation.

e-mail: kenis@mail.ru

Dmitriy V. Parshin
Regional psychoneurological children’s sanatorium
Russian Federation

Andrey V. Sapogovskiy
H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery of the Ministry of Health of the Russian Federation
Russian Federation