1. Department of Bacteriology, Shriners Hospitals for Children, Boston, MA 02114, USA
2. Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
3. Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
4. Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
5. Department of Dermatology, Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
6. Pediatric Department, Massachusetts General Hospital, Boston, MA 02115, USA
7. Department of Surgery, Harvard Medical School, Boston, MA 02115, USA
8. Trauma, Emergengcy Surgery and Surgical Critical Care Service, Massachusetts General Hospital, Boston, MA 02114, USA