B Schultz1, E Latour2, N Fett3. 1. Departments of Dermatology and Internal Medicine, University of Minnesota, Minneapolis, MN, U.S.A. 2. Knight Cancer Institute Biostatistics Shared Resource, Oregon Health and Science University, Portland, OR, U.S.A. 3. Department of Dermatology, Oregon Health and Science University, Portland, OR, U.S.A.