1. College of Osteopathic Medicine, Edward Via College of Osteopathic Medicine , Blacksburg, VA , USA
2. Case Western Reserve University School of Medicine , Cleveland, OH , USA
3. Vanderbilt University Medical Center , Nashville, TN , USA
4. The John P. and Kathrine G. McGovern Medical School , Houston, TX , USA
5. University of Illinois at Chicago College of Medicine , Chicago, IL , USA
6. College of Medicine, California Northstate University , Elk Grove, CA , USA
7. University of South Dakota Sanford School of Medicine , Sioux Falls, SD , USA
8. Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
9. Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus , Aurora, CO , USA
10. Dermatology Service, US Department of Veterans Affairs Rocky Mountain Regional Medical Center , Aurora, CO , USA