1. Department of Electrical and Computer Engineering Vanderbilt University Nashville Tennessee USA
2. Dermatology Service and Research Service, Department of Veterans Affairs Tennessee Valley Healthcare System Nashville Tennessee USA
3. Vanderbilt Department of Dermatology Vanderbilt University Medical Center Nashville Tennessee USA
4. Biophotonics Laboratory Institute of Atomic Physics and Spectroscopy, University of Latvia Riga Latvia
5. Department of Biomedical Engineering Vanderbilt University Nashville Tennessee USA
6. School of Medicine Yale University New Haven Connecticut USA