Swann, J. W., Priestnall, S. L., Dawson, C., Chang, Y. M., & Garden, O. A. Histologic and clinical features of primary and secondary vasculitis: a retrospective study of 42 dogs (2004-2011). JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION, 27(4), 489-96. https://doi.org/10.1177/1040638715587934