1. Division of Cardiology, Providence St. Peter Hospital, Olympia, WA, USA
2. Keele Cardiovascular Research Group, Centre for Prognosis Research, Keele University, UK
3. Royal Stoke University Hospital, Stoke-on-Trent, UK
4. Academic Rheumatology, University of Nottingham, Nottingham, UK
5. School of Primary, Community and Social Care, Keele University, UK
6. Haywood Academic Rheumatology Centre, Midland Partnership NHS Foundation Trust, Haywood Hospital, Burslem, UK
7. Department of Medicine (Cardiology), Thomas Jefferson University Hospital, Philadelphia, PA, USA
8. Cardiology, Loma Linda University, Loma Linda, CA, USA