1. Doctoral School , Medical University of Lublin , Chodzki 7 Street , Lublin , Poland
2. Hygiene and Epidemiology Department , Medical University of Lublin , Poland
3. Department of Geriatrics , Stefan Cardinal Wyszyński Provincial Specialist Hospital in Lublin , Poland
4. Department of Internal Diseases, Endocrinology and Diabetology , Provincial Specialist Hospital. Stefan Cardinal Wyszyński , Lublin