Division of Rheumatology;
Mayo Clinic;
Rochester;
MN;
USA;
Division of Health Sciences Research;
Mayo Clinic;
Rochester;
MN;
USA;
Division of Rheumatology;
University of Pittsburgh;
Pittsburgh;
PA;
USA;
Division of Rheumatology;
Department of Pediatrics;
Duke University School of Medicine;
Durham;
NC;
USA;