1. Department of Rheumatology and Immunology, Singapore General Hospital, Singapore
2. Duke-NUS Medical School, Singapore
3. Rheumatologist, Melbourne, Victoria, Australia
4. School of Medicine, Griffith University, Brisbane, Queensland, Australia
5. Department of Rheumatology and Immunology, Singapore General Hospital, level 4, Academia, 20 College Road, Outram Road, Singapore 169608, Singapore Duke-NUS Medical School, Singapore