1 Division of Hematology & Oncology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA; Wellman Center for Photomedicine, Harvard Medical School, Boston, Massachusetts, USA.
2 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA; Wellman Center for Photomedicine, Harvard Medical School, Boston, Massachusetts, USA.
3 Tufts Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA.
4 Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA; Wellman Center for Photomedicine, Harvard Medical School, Boston, Massachusetts, USA. Electronic address: htsao@partners.org.