1. Department of Integrated Medical Care, Faculty of Health Sciences, Medical University of Bialystok, 15-089 Bialystok, Poland
2. Department of Physical Education, Faculty of Physical Education and Tourism, Eastern European University of Applied Sciences in Bialystok, 15-472 Bialystok, Poland
3. Department of Health Care, Prof. Edward F. Szczepanik State Vocational College, 16-402 Suwałki, Poland
4. Department of Biology System and Genetic Research, Faculty of Animal Sciences, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
5. Department of Gerontology, Public Health and Didactics, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland
6. Department of Pediatrics and Preventive Medicine, Medical Institute, Immanuel Kant Baltic Federal University, 236041 Kaliningrad, Russia
7. Department of Hygiene, Pirogov Russian National Research Medical University, 117997 Moscow, Russia