Zeft, A. S., M. Schlesinger, H. Keenan, R. Larson, H. Emery, and N. S. Weiss. “Wegener’s Granulomatosis and Environmental Factors in Western Montana”. Rheumatology Reports, vol. 2, no. 1, Dec. 2010, p. e8, doi:10.4081/rr.2010.e8.