| Affiliation: | (1) The Division of Rheumatology and Immunology, Department of Medicine, University of North Carolina at Chapel Hill, 27599 Chapel Hill, NC, USA;(2) Quidel, Inc., 92121 San Diego, CA, USA;(3) Division of Rheumatology, Hahnemann University Medical School, Philadelphia, Pennsylavania, USA;(4) Department of Pediatrics, Children's Hospital Medical Center, Northwestern University, Chicago, Illinois, USA;(5) Division of Rheumatology and Immunology CB # 7280, 932 F.L.O.B. 231-H, University of North Carolina at Chapel Hill, 27599-7280 Chapel Hill, NC, USA |
