1 Department of Dermatology, UT Southwestern Medical Center, Dallas, Texas, USA; Division of Rheumatic Diseases, Department of Internal Medicine, UT Southwestern Medical Center, Dallas, Texas, USA; Peter O'Donnell Jr. School of Public Health, UT Southwestern Medical Center, Dallas, Texas, USA. Electronic address: Joseph.Merola@UTSouthwestern.edu.
2 Tufts School of Medicine, Boston, Massachusetts, USA.
3 UT Southwestern Medical School, Dallas, Texas, USA.
4 O'Donnell School of Public Health, UT Southwestern Medical Center, Dallas, Texas, USA.
5 Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
6 Department of Dermatology, UT Southwestern Medical Center, Dallas, Texas, USA.
7 Department of Dermatology, Icahn School of Medicine at Mt. Sinai, New York, New York, USA.
8 Department of Dermatology, Penn Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Corporal Michael J. Crescenz VA Medical Center, Philadelphia, Pennsylvania, USA.
9 Department of Dermatology, University of Miami, Miami, Florida, USA.