1. Wellman Center for Photomedicine, Massachusetts General Hospital; Harvard Medical School; Boston Massachussetts
2. Department of Plastic and Reconstructive Surgery, Hospital of the Barmherzige Brüder; Paracelsus Medical University Salzburg; Kajetanerplatz 1 5020 Salzburg Austria
3. Department of Dermatology; Harvard Medical School; Boston Massachussetts