1Department of Internal Medicine, Rheumatology and Nephrology, Universitatea de Stat de Medicina si Farmacie Nicolae Testemitanu, Chișinău, Moldova
2 Rheumatology Laboratory, Timofei Mosneaga Republican Clinical Hospital, Chișinău, Chișinău, Moldova
3Faculty of Dentistry, Department 5 - Internal Medicine (Cardiology, Gastroenterology, Hepatology, Rheumatology, Geriatrics), Family Medicine, Occupational Medicine, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucuresti, Romania
4Department of Social Medicine and Management “Nicolae Testemitanu”, Universitatea de Stat de Medicina si Farmacie Nicolae Testemitanu, Chișinău, Moldova
5Information Laboratory, Universitatea de Stat de Medicina si Farmacie Nicolae Testemitanu, Chișinău, Moldova