1 Department of Medicine, Division of Rheumatology & Immunology, Vanderbilt University Medical Center, Nashville, TN, USA.
2 Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Diego School of Medicine, UC San Diego Health, La Jolla, CA, USA.
3 Division of Rheumatology, Autoimmunity and Inflammation, Department of Medicine, School of Medicine, University of California San Diego, La Jolla, CA, USA.
4 Department of Pathology, University of California San Diego, La Jolla, CA, USA.
5 Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA.