RESEARCH LETTER A. Markova Corresponding Author E-mail address: markovaa@mskcc.org Memorial Sloan Kettering Cancer Center, Dermatology Service, New York, NY, USA Correspondence A. Markova Email: markovaa@mskcc.org Search for more papers by this author This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record.