1. Department of Dermatology Cutaneous Biology Research Center (CBRC), Massachusetts General Hospital, Harvard Medical School Charlestown Massachusetts USA
2. Department of Biomedical Engineering, Laboratory for Functional Optical Imaging Columbia University New York New York USA
3. Department of Dermatology, School of Medicine Lebanese American University Beirut Lebanon
4. Department of Dermatology Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School Boston Massachusetts USA