1. Internal Medicine and Rheumatology Department, Sf�nta Maria Clinical Hospital, Carol Davila University of Medicine and Pharmacy, Bucharest 011172, Romania
2. Ion Stoia Clinical Centre for Rheumatic Diseases, Carol Davila University of Medicine and Pharmacy, Bucharest 031167, Romania
3. Cardiology Department, Elias University Emergency Hospital, Carol Davila University of Medicine and Pharmacy, Bucharest 011461, Romania
4. Rheumatology Department, Dr I. Cantacuzino Clinical Hospital, Carol Davila University of Medicine and Pharmacy, Bucharest 030167, Romania