PeerJ Author 100 Points Contributions by role Author 100 Contributions by subject area Pediatrics Public Health Przemysław Kędra PeerJ Author Summary Anesthesiology & Pain Management Epidemiology Orthopedics Pediatrics Past or current institution affiliations Physical Education Academy Jozef Pilsudski in Warsaw PeerJ Contributions Articles 1 May 4, 2021 Non-specific low back pain: cross-sectional study of 11,423 children and youth and the association with the perception of heaviness in carrying of schoolbags Agnieszka Kędra, Magdalena Plandowska, Przemysław Kędra, Dariusz Czaprowski https://doi.org/10.7717/peerj.11220 PubMed 33986989
