1 Department of Dermatology, West Virginia University School of Medicine, Morgantown, West Virginia, USA.
2 University of Virginia School of Medicine, Charlottesville, Virginia, USA.
3 School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
4 Penn State College of Medicine, Hershey, Pennsylvania, USA.
5 Department of Dermatology, University of Virginia School of Medicine, Charlottesville, Virginia, USA.
6 UNC Kidney Center, Division of Nephrology and Hypertension, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
7 Department of Dermatology, Penn State College of Medicine, Hershey, Pennsylvania, USA.
8 Department of Dermatopathology, University of Virginia School of Medicine, Charlottesville, Virginia, USA.
9 Department of Public Health Sciences, Penn State College of Medicine, Hershey, Pennsylvania, USA.
Keywords:
ANCA vasculitis; direct immunofluorescence; eosinophilic granulomatosis with polyangiitis; granulomatosis with polyangiitis; microscopic polyangiitis.