1. Royal Prince Alfred Hospital; Institute of Rheumatology and Orthopedics; Missenden Road Camperdown New South Wales Australia 2050
2. Queen Elizabeth Hospital; Rheumatology Unit; 28 Woodville Road Woodville South South Australia Australia 5011
3. Leiden University Medical Center; Department of Rheumatology; Leiden Netherlands
4. Zuyderland Medical Center; Heerlen Netherlands
5. Columbia University Medical Center; Center for Behavioral Cardiovascular Health; PH9 Room 322 622 West 168th St New York NY USA 10032
6. Monash University; Monash Department of Clinical Epidemiology, Cabrini Institute and Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine; Melbourne Australia