1. College of Medicine, University of Arizona, Tucson, AZ, USA
2. David Geffen School of Medicine, University of California, Los Angeles, CA, USA
3. Department of Dermatology, Henry Ford Hospital, Detroit, MI, USA
4. Department of Medicine, Division of Dermatology, University of California Los Angeles, Los Angeles, CA, USA
5. Department of Dermatology, University of Arkansas for Medical Sciences, Little Rock, AR, USA