1. Department of Surgery, Tufts Medical Center, Boston, Massachusetts, USA.
2. Division of Vascular Surgery, Cardiovascular Center, Tufts Medical Center, Boston, Massachusetts, USA.
3. Division of Plastic and Reconstructive Surgery, Department of Surgery, Tufts Medical Center, Boston, Massachusetts, USA.
4. Division of Geographic Medicine and Infectious Diseases, Department of Medicine, Tufts Medical Center, Boston, Massachusetts, USA.