[1] Chinese Univ Hong Kong, Dept Surg, Div Neurosurg, Prince Wales Hosp, Shatin, Hong Kong, Peoples R China
[2] Chinese Univ Hong Kong, Prince Wales Hosp, Dept Clin Oncol, Hong Kong, Hong Kong, Peoples R China
[3] Chinese Univ Hong Kong, Prince Wales Hosp, Dept Anat & Cellular Pathol, Hong Kong, Hong Kong, Peoples R China