Affiliations

1. As part of the supplement series GRAPPA 2020, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. Source of support: GRAPPA. 1A. Kavanaugh, MD, Professor of Medicine, University of California, San Diego, California, USA; 2A. Ishchenko, MD, R.J. Lories, MD, PhD, K. de Vlam, MD, PhD, Department of Rheumatology, University Hospitals Leuven, Leuven, Belgium; 3Z. Shi, MD, PhD, Department of Dermatology, University of California, Davis, Sacramento, California, USA and Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; 4S.P. Raychaudhuri, MD, PhD, Department of Internal Medicine, Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis, Davis, California, USA; 5S.T. Hwang, MD, PhD, Department of Dermatology, University of California, Davis, California, USA. There are no conflicts of interest for the authors. Address correspondence to Dr. A. Kavanaugh, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92037-0943, USA. Email: [email protected].