1. Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, United
States
2. Department of Semiconductor
Science and Technology, Chonbuk National University, Jeonju 561-756, Korea
3. Department of Neuropathology, Yale School of Medicine, New Haven, Connecticut 06520,
United States
4. Yale Comprehensive Cancer Center, New Haven, Connecticut 06520, United
States