1. Department of Pediatrics, Division of Rheumatology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, USA;
2. Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, USA
3. Department of Medicine, Division of Hematology-Oncology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama, USA