[1] Natl Taiwan Univ Hosp, Dept Surg, Div Neurosurg, Yun Lin Branch, Yunlin, Taiwan
[2] Natl Taiwan Univ Hosp, Dept Pathol, Taipei, Taiwan
[3] Natl Taiwan Univ, Coll Med, Taipei, Taiwan
[4] Natl Taiwan Univ Hosp, Dept Pathol, Yun Lin Branch, Yunlin, Taiwan
[5] Acad Sinica, Inst Biomed Sci, Taipei, Taiwan
[6] Univ Calif San Francisco, Dept Pathol, Div Neuropathol, San Francisco, CA 94143 USA