Affiliation: | 1. The Department of Pediatrics, Children’s Hospital Los Angeles and the Keck School of Medicine, University of Southern California, Los Angeles, CA, USA 2. The Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, IA, USA 3. Department of Pediatrics, Division of Rheumatology, University of Iowa Carver College of Medicine, 200 Hawkins Drive, 4038 Boyd Tower, Iowa City, IA, 52240, USA
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