1 Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, 530 East 74th Street, New York, NY, 10021, USA.
2 Division of Dermatology, Washington University School of Medicine, St. Louis, MO, USA.
3 Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
4 Department of Dermatology, Center for Cutaneous Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, MA, USA.
5 Norton Cancer Institute, Louisville, KY, USA.
6 Department of Oncodermatology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France.
7 Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, 530 East 74th Street, New York, NY, 10021, USA. LacoutuM@mskcc.org.