1. Department of Physiotherapy, Wroclaw Medical University, 50-368 Wroclaw, Poland
2. Research and Development Center, Regional Specialist Hospital, 51-124 Wroclaw, Poland
3. Department of Neurosurgery, Provincial Specialist Hospital in Legnica, 59-220 Legnica, Poland
4. Department of Neurosurgery, Health Clinic “Medic” in Walbrzych, 58-306 Walbrzych, Poland
5. Department of Humanities and Social Science, Wroclaw Medical University, 50-368 Wroclaw, Poland