Affiliation: | 1.Rehasport Clinic, Spine Disorders Unit, Department of Pediatric Orthopedics and Traumatology,University of Medical Sciences,Poznań,Poland;2.Department of Physiotherapy,Józef Rusiecki University College,Olsztyn,Poland;3.Spine Disorders Unit, Department of Pediatric Orthopedics and Traumatology,University of Medical Sciences,Poznań,Poland |