1. Rheumatology Department, Università Politecnica delle Marche, C. Urbani Hospital, Jesi, Ancona, Italy
2. Department of Rheumatology, Institute of Rheumatology, First Faculty of Medicine, Charles University
3. Department of Pediatric and Adult Rheumatology, Motol University Hospital, Prague, Czech Republic
4. Radiology Department, Università Politecnica delle Marche, Ancona, Italy
5. Department of Methodology, Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic