1. Division of Rheumatology; Department of Internal Medicine; Izmir Katip Celebi University School of Medicine; Izmir Turkey
2. Department of Medical Biology; School of Medicine; Gaziantep University; Gaziantep Turkey
3. Department of Internal Medicine; Division of Rheumatology; Dokuz Eylul University School of Medicine; Izmir Turkey
4. Department of Internal Medicine; Division of Rheumatology; Namik Kemal University School of Medicine; Tekirdag Turkey