[1] Univ Calif Los Angeles, Med Ctr, Dept Pathol & Lab Med, Sect Neuropathol, Los Angeles, CA 90095 USA
[2] David Geffen Sch Med, Los Angeles, CA 90095 USA
[3] Univ Calif Los Angeles, Dept Neurol, Med Ctr, Los Angeles, CA 90095 USA
[4] Univ Calif Los Angeles, Dept Radiol Sci, Med Ctr, Los Angeles, CA 90095 USA
[5] Univ Calif Los Angeles, Dept Neurosurg, Med Ctr, Los Angeles, CA 90095 USA
[6] Univ Calif Los Angeles, Brain Res Inst, Med Ctr, Los Angeles, CA 90095 USA
[7] Univ Calgary, Cumming Sch Med, Sect Neuropathol, Dept Pathol & Lab Med, Calgary, AB T2N 1N4, Canada