[1] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA
[2] SUNY Stony Brook, Dept Anesthesiol, New York, NY USA
[3] Florida State Univ, Dept Chem & Biomed Engn, Tallahassee, FL 32306 USA
[4] Natl High Magnet Field Lab, Tallahassee, FL USA
[5] Mt Sinai Sch Med, Dept Neurosci, New York, NY USA