1. Department of Preventive Medicine, Faculty of Health Sciences, University of Medical Sciences, 61-701 Poznań, Poland
2. Occupational Therapy Unit, Faculty of Health Sciences, University of Medical Sciences, 61-701 Poznań, Poland
3. Department of Immunobiology, University of Medical Sciences, 61-701 Poznań, Poland
4. Department of Nursing, Stanisław Staszic State University of Applied Sciences, 64-920 Piła, Poland