1. Department of Dermatology University of Colorado School of Medicine Aurora CO USA
2. Medical School University of Tennessee Health Science Center Memphis TN USA
3. Department of Medicine Tulane University School of Medicine New Orleans LA USA
4. College of Osteopathic Medicine Rocky Vista University Parker CO USA
5. Department of Dermatology Azienda Sanitaria Berica, Ospedale San Bortolo Vicenza Italy
6. Study Center Italian Group for Epidemiological Research in Dermatology (GISED) Bergamo Italy
7. Department of Dermatology AP‐HP Hôpital Henri Mondor UPEC Créteil France
8. St Johns Institute of Dermatology Kings College London London SE1 UK
9. Dermatology Service U.S. Department of Veterans Affairs Eastern Colorado Health Care System Aurora Colorado USA
10. Department of Epidemiology Colorado School of Public Health University of Colorado Anschutz Medical Campus Aurora Colorado USA