1. Departments of 1Biomedical Engineering and
2. Department of Anesthesiology and Pain Medicine, Yonsei University, Wonju;
3. Anesthesiology/Critical Care Medicine, Johns Hopkins Medical Institutions, Baltimore, Maryland;
4. Division of Life Sciences, Kangwon National University, Chuncheon, Korea; and
5. Medical Department, Brookhaven National Laboratory, Upton, New York