Chante Karimkhani1, Bobby Y Reddy2, Robert P Dellavalle3,4,5, Srinath Sundararajan6. 1. Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA ck2525@caa.columbia.edu. 2. Wellman Center for Photomedicine, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. 3. Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. 4. Dermatology Service, Eastern Colorado Health Care System, US Department of Veteran Affairs, Denver, CO, USA. 5. Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. 6. Division of Hematology and Oncology, Department of Medicine, University of Arizona, Tucson, AZ, USA.