Sudibio, S., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Radiation Oncology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Anton, J., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Radiation Oncology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Handoko, H., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Radiation Oncology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Permata, T.B.M., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Radiation Oncology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Kodrat, H., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Radiation Oncology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Nuryadi, E., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Radiation Oncology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Sofyan, H.R., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Neurology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Mulyadi, R., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Radiology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Aman, R.A., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Neurosurgery, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia; Gondhowiardjo, S., Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Radiation Oncology, Dr. Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia