1. Institute of Experimental Endocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
2. Center for Molecular Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
3. National Institute of Rheumatic Diseases, Piestany, Slovakia
4. 5th Department of Internal Medicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
5. Fidelitas, s.r.o., Rheumatology Out-patient Clinic, Bratislava, Slovakia