1 Division of Dermatology, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, California. Electronic address: armstrongpublication@gmail.com.
2 Department of Dermatology, University of Alabama at Birmingham, Birmingham, Alabama.
3 Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
4 Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York.