1. Clinical Medicine Department, Miguel Hernandez University, 03550 San Juan de Alicante, Spain
2. Rheumatology Section, Dr. Balmis General University Hospital, 03010 Alicante, Spain
3. Research Group on Rheumatic and Autoimmune Diseases, Alicante Institute for Health and Biomedical Research (ISABIAL), 03010 Alicante, Spain