Kelsey S Flood1, Martina L Porter2, Alexa B Kimball3. 1. Department of Dermatology, University of Cincinnati, Cincinnati, Ohio. 2. Clinical Laboratory for Epidemiology and Applied Research in Skin (CLEARS), Department of Dermatology, Beth Israel Deaconess Medical Center, Boston, Massachusetts. 3. Clinical Laboratory for Epidemiology and Applied Research in Skin (CLEARS), Department of Dermatology, Beth Israel Deaconess Medical Center, Boston, Massachusetts. Electronic address: clears@bidmc.harvard.edu.