1. Division of Podiatric Surgery, Center for Wound Healing, MedStar Georgetown University Hospital, Washington, DC (PC)
2. MedStar Washington Hospital Center, MedStar Georgetown Orthopedic Institute, Georgetown University School of Medicine, Washington, DC (RMH)
3. Children’s National Medical Center, National Cancer Institute, Washington, DC (RMH)
4. Department of Plastic Surgery, Division of Podiatric Surgery, MedStar Washington Hospital Center, MedStar Georgetown University Hospital, Washington, DC (CG, KR)
5. Department of Pathology, MedStar Washington Hospital Center, Washington, DC (DK)