| Affiliation: | (1) Division of Rheumatology, Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, 1000 Veteran Avenue, Rm 32-59 Rehabilitation Building, Los Angeles, CA 90095, USA;(2) Department of Medicine, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA;(3) Department of Health Services, School of Public Health, University of California at Los Angeles, Los Angeles, CA 90095, USA;(4) Department of Population Health Sciences, University of Wisconsin-Madison, Madison, WI, USA;(5) Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, USA;(6) Department Industrial and Systems Engineering, University of Wisconsin-Madison, Madison, WI, USA |
