1. In Vivo Multifunctional Magnetic Resonance Center, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, West Virginia 26506, United States
2. Department of Biochemistry, West Virginia University, School of Medicine, Morgantown, West Virginia 26506, United States
3. Department of Pharmaceutical Sciences, West Virginia University, School of Pharmacy, Morgantown, West Virginia 26506, United States
4. Department of Microbiology, Immunology, and Cell Biology, West Virginia University, School of Medicine, Morgantown, West Virginia 26506, United States