1. Rheumatology Unit, 1st Department of Propaedeutic Internal Medicine, Joint Academic Rheumatology Program, University of Athens, Medical School, National & Kapodistrian University of Athens Medical School, 75 Mikras Asias Street, Goudi, 11527 Athens, Greece
2. University of West Attica, 12243 Athens, Greece
3. Institute of Materials Research and Innovation, University of Bolton, Bolton BL3 5AB, UK