1. Department of Children Orthopedics and Musculoskeletal Oncology, Pomeranian Medical University of Szczecin, 71-252 Szczecin, Poland
2. Department of Anesthesiology and Intensive Therapy, Pomeranian Medical University of Szczecin, 71-252 Szczecin, Poland
3. Department of Orthopedics, Traumatology and Musculoskeletal Oncology, Pomeranian Medical University of Szczecin, 71-252 Szczecin, Poland