1. Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania.
2. Physician Scientist Training Program, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.
3. Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania.
4. Max Planck Florida Institute for Neuroscience, Jupiter, Florida.
5. Center for Neuroscience Imaging Research, Institute for Basic Science, Suwon, Korea.
6. Department of Biomedical Engineering, Sungkyunkwan University, Suwon, Korea.