1. Dartmouth Hitchcock Medical Center, Department of Dermatology, Lebanon, NH 03766, USA
2. Geisel School of Medicine, Dartmouth College, Lebanon, NH 03766, USA
3. Dartmouth Hitchcock Medical Center, Department of Pediatrics, Lebanon, NH 03766, USA
4. Dartmouth Hitchcock Medical Center, Department of Surgery, Lebanon, NH 03766, USA
5. Dartmouth Hitchcock Medical Center, Department of Pathology and Laboratory Medicine, Lebanon, NH 03766, USA