1. Medical Scientist Training Program, Mayo Clinic, Rochester, Minnesota 55902, United States
2. Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota 55902, United States
3. Department of Psychiatry and Psychology, Mayo Clinic, Rochester, Minnesota 55902, United States
4. Robert D. and Patricia K. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota 55902, United States
5. Division of Engineering, Mayo Clinic, Rochester, Minnesota 55902, United States
6. Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
7. Department of Biomedical Engineering, Hanyang University, Seoul 04763, South Korea
8. Department of Biomedical Engineering, Mayo Clinic, Rochester, Minnesota 55902, United States