1 School of Medicine, University of Colorado, Aurora, CO.
2 College of Osteopathic Medicine, Rocky Vista University, Parker, CO.
3 Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO.
4 Department of Medicine, University of California, San Diego, CA.
5 Department of Medicine, Division of Dermatology, University of Washington, Seattle, WA.
6 Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO; Dermatology Service, US Department of Veterans Affairs Rocky Mountain Regional Medical Center, Aurora, CO. Electronic address: robert.dellavalle@ucdenver.edu.