1. Department of Physics and Astronomy University of North Carolina at Chapel Hill Chapel Hill North Carolina
2. Biomedical Research Imaging Center University of North Carolina at Chapel Hill Chapel Hill North Carolina
3. Department of Applied Physical Sciences University of North Carolina at Chapel Hill Chapel Hill North Carolina
4. Center for Molecular and Biomolecular Imaging, Department of Radiology and Dermatology Duke University Durham North Carolina
5. Division of Plastic, Reconstructive, Maxillofacial and Oral Surgery Duke University Medical Center Durham North Carolina