1. Department of Public Health, the University of California Merced, Merced, CA, USA.
2. Federal University of Minas Gerais, Belo Horizonte, Brazil.
3. Independent Researcher, Victoria, London, United Kingdom.
4. Department of Rheumatology, Royal Wolverhampton Hospital NHS Trust, Wolverhampton, United Kingdom.
5. City Hospital, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, United Kingdom.
6. Division of Musculoskeletal and Dermatological Sciences, Centre for Musculoskeletal Research, School of Biological Sciences, The University of Manchester, Manchester, United Kingdom.