1. Biostatistics Group, Wroclaw University of Environmental and Life Sciences, 51-631 Wroclaw, Poland
2. Centre for Cardiovascular Genetics and Gene Diagnostics, Foundation for People with Rare Diseases, Wagistrasse 25, 8952 Schlieren, Switzerland
3. Department of Psychiatry, Medical University of Warsaw, 00-665 Warsaw, Poland
4. Central Clinical Hospital of Ministry of the Interior and Administration in Warsaw, 02-507 Warsaw, Poland
5. Department of Infectious Diseases, Doctoral School, Medical University of Lublin, 20-059 Lublin, Poland
6. National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland