1. Institute of Nursing and Midwifery, Faculty of Health Sciences, Jagiellonian University Medical College, Cracow, Poland
2. Department of Integrated Medical Care, Faculty of Health Sciences, Medical University of Białystok, Białystok, Poland
3. Department of Geriatrics, Faculty of Health Sciences, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland
4. Department of Geriatrics, Medical University of Białystok, Białystok, Poland