[1] Univ Gadjah Mada, Dr Sardjito Gen Hosp, Fac Med Publ Hlth & Nursing, Neurol Dept, Yogyakarta, Indonesia
[2] Univ Gadjah Mada, Dr Sardjito Gen Hosp, Fac Med Publ Hlth & Nursing, Dept Anat Pathol, Yogyakarta, Indonesia
[3] Univ Gadjah Mada, Dr Sardjito Gen Hosp, Fac Med Publ Hlth & Nursing, Div Neurosurg,Dept Surg, Yogyakarta, Indonesia