Department of Specialized Nursing, Pomeranian Medical University in Szczecin, Poland

Department of Anaesthesiology and Intensive Care, with a subdepartment of Paediatric Intensive Care, Intensive Care, Multi-Specialty Provincial Hospital in Gorzów Wielkopolski, Poland

The University of Humanities and Economics in Lodz, Poland

Subdepartment of Social Medicine and Public Health, Department of Social Medicine, Pomeranian Medical University in Szczecin, Poland