1. University of Tuzla; Medical faculty; Univerzitetska 1 Tuzla Canton Tuzla Bosnia and Herzegovina 75000
2. Cochrane Croatia, University of Split School of Medicine; Soltanska 2 Split Croatia
3. University Hospital Split; Department of Pediatrics; Spinciceva 1 Split Croatia 21 000
4. University Hospital Split, School of Medicine, Cochrane Croatia; Division of Rheumatology and Clinical Immunology; Šoltanska 2 Split Croatia 21000
5. University of Split School of Medicine; Cochrane Croatia; Soltanska 2 Split Croatia 21000