1. Department of Molecular Pathology; Institute of Biomedical and Translational Medicine; University of Tartu; Tartu Estonia
2. Department of Microbiology; Institute of Biomedical and Translational Medicine; University of Tartu; Tartu Estonia
3. Division of Rheumatology and Clinical Immunology; University of Pittsburgh; Pittsburgh Pennsylvania USA
4. Department of Biological Sciences; University of Toledo; Toledo OH USA