1. Student’s Scientific association at the Hygiene and Epidemiology Department , Medical University of Lublin , Poland
2. Faculty of Medical Sciences, Department of Foreign Languages , Medical University of Lublin , Poland
3. Faculty of Medical Sciences, Department of Hygiene and Epidemiology , Medical University of Lublin , Poland
4. Rehabilitation and Orthopaedics Clinic , Medical Universityof Lublin , Poland