[1] Dongguk Univ Int Hosp, Goyang, South Korea
[2] Neuroprotect Res Lab, Charlestown, MA USA
[3] NMR Ctr, Charlestown, MA USA
[4] Burnham Inst, La Jolla, CA 92037 USA
[5] Natl Canc Ctr, Goyang, South Korea
[6] Ctr Mol Imaging Res, Charlestown, MA USA
[7] Univ Texas, MD Anderson Canc Ctr, Houston, TX 77030 USA