1 Centre for Health Systems and Safety Research, Australian Institute of Health Innovation, Faculty of Medicine, Health and Human Sciences, Macquarie University, and The University of Sydney, Faculty of Medicine and Health, School of Pharmacy, Sydney, Australia; joy.dai-keller@mq.edu.au.
2 Boston University School of Medicine, Department of Medicine, Section of Rheumatology, Boston, Massachusetts, USA.
3 Centre for Epidemiology, University of Manchester and the NIHR Manchester BRC, Manchester University NHS Trust, Manchester, UK.