[1] Cedars-Sinai Medical Center,Division of Rheumatology, Department of Medicine
[2] Karolinska Institutet,Division of Clinical Epidemiology, Department of Medicine Solna
[3] Stanford School of Medicine,Division of Epidemiology, Department of Health Research and Policy
[4] Stanford School of Medicine,undefined
[5] Division of Immunology and Rheumatology,undefined
[6] Department of Medicine,undefined