D. G. Naumov
St. Petersburg Research Institute of Phthisiopulmonology
Russian Federation

Denis Georgievich Naumov, junior researcher, Politekhnicheskaya str., 32, St. Petersburg, 194064, Russia

E. A. Speranskaya
St. Petersburg Research Institute of Phthisiopulmonology
Russian Federation

Elena Aleksandrovna Speranskaya, resident, Politekhnicheskaya str., 32, St. Petersburg, 194064, Russia

M. A. Mushkin
Pavlov First Saint Petersburg State Medical University
Russian Federation

Mikhail Aleksandrovich Mushkin, orthopedic traumatologist, teaching assistance, Department of traumatology and orthopedics, Lev Tolstoy str., 6–8, St. Petersburg, 194064, Russia

D. B. Malamashin
St. Petersburg Research Institute of Phthisiopulmonology
Russian Federation

Denis Borisovich Malamashin, MD, PhD, senior researcher, orthopedic surgeon, Politekhnicheskaya str., 32, St. Petersburg, 194064, Russia

A. Yu. Mushkin
St. Petersburg Research Institute of Phthisiopulmonology
Russian Federation

Aleksandr Yuryevich Mushkin, DMSc, Рrof., chief researcher, Head of Clinic of Pediatric Surgery and Orthopedics, Head of the Scientific and Clinical Centre for spinal
pathology, Politekhnicheskaya str., 32, St. Petersburg, 194064, Russia