1. Department of Paediatric Orthopaedics and Musculoskeletal Oncology, SPSK nr 1 Pomeranian Medical University, 71-252 Szczecin, Poland
2. Department of Anaesthesiology and Intensive Therapy, SPSK No 1 Pomeranian Medical University, 71-252 Szczecin, Poland
3. Independent Biochemical Sciences, Pomeranian Medical University, 71-460 Szczecin, Poland
4. Department of Infectious Diseases, Tropical Diseases and Acquired Immunodeficiencies, Pomeranian Medical University, 70-204 Szczecin, Poland
5. Department of Clinical Nursing, Pomeranian Medical University, 70-204 Szczecin, Poland