Assistant professor of microbiology, Northern Arizona University, Flagstaff, AZ, 19Associate professor of microbiology and immunology, University of Arizona, Tucson, AZ, 1990-1998Professor of microbiology and immunology, University of Arizona, Tucson, AZ, 1999-2008Director, Immunobiology Program, Arizona Cancer Center, Tucson, AZ, 1999-2008Interim chair, Department of Immunobiology, University of Arizona, Tucson, AZ, 2004-2008Chief, Laboratory of Tumor Immunology and Therapeutics, Robert W. Franz Cancer Research Center in the Earle A. Chiles Research Institute at Providence Cancer Center, 2008-PresentAdjunct professor of microbiology and immunology, School of Medicine, Oregon Health & Science University, 2008-PresentList of Publications