1. Wellman Center for Photomedicine; Massachusetts General Hospital; Boston MA USA
2. Division of Surgery & Interventional Science; University College London; Royal Free Hospital; London UK
3. Department of Pathology; University of Michigan Medical School; Ann Arbor MI USA
4. Harvard College; Cambridge MA USA
5. Department of Dermatology; Harvard Medical School; Boston MA USA
6. Harvard-MIT Division of Health Sciences and Technology; Cambridge MA USA