1. Department of Geriatric Medicine and Gerontology, Karol Marcinkowski University of Medical Sciences: Swięcickiego 6 Poznan 60-781, Poland
2. Department of Palliative Medicine, Karol Marcinkowski University of Medical Sciences, Poland
3. Department and Clinic for Physiotherapy, Rheumatology and Rehabilitation, Karol Marcinkowski University of Medical Sciences, Poland