1. Department of Pharmacy and Pharmacology, University of Bath, Bath, UK
2. Royal National Hospital for Rheumatic Diseases (part of Royal United Hospitals), Upper Borough Walls, Bath, UK
3. School of Medicine, University of Tulane Medical Center, New Orleans, LA, USA
4. Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
5. Department of Geriatric Medicine, Division of Rheumatology, AOUC, Florence, Italy
6. Division of Rheumatology, ASST Pini, Department of Clinical Sciences and Community Health, Universita degli Studi di Milano, Milano, Italy
7. Division of Rheumatology, Department of Medicine, University of Michigan, Ann Arbor, MI, USA