1. Department of Medical Informatics and Statistics with E-learning Lab, Medical University of Lublin , Poland
2. Clinical Trials Support Center , Medical University of Lublin , Poland
3. University Clinical Trials Support Center in Poznan, Medical University of Poznan , Poland
4. Department of Language , Rhetoric and Media Law , Institute of Journalism and Management , Catholic University of Lublin John Paul II , Poland
5. Department of Experimental Hematooncology , Medical University of Lublin , Poland