Affiliation: | 1. Department of Laboratory Diagnostics, University Medical Centre Maribor, Maribor, Slovenia;2. Department of Allergology, Rheumatology and Clinical Immunology, University Children''s Hospital, University Medical Center Ljubljana, Ljubljana SI-1525, Slovenia;3. Unit for Special Laboratory Diagnostics, University Children''s Hospital, University Medical Center Ljubljana, Ljubljana, Slovenia;4. Department of Rheumatology, University Medical Centre Maribor and Faculty of Medicine, University of Maribor, Maribor, Slovenia;5. Department of Pediatrics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia |