1. 3rd Department of Internal Medicine; Papageorgiou Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
2. Institute of Computer Science; Foundation for Research and Technology - Hellas (FORTH); Heraklion Greece
3. Rheumatology Department; Papageorgiou Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
4. Rheumatology Department-2nd Propedeutic Department of Internal Medicine; Hippokration Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece