Gondhowiardjo, S.A., Department of Radiation Oncology, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia; Adham, M., Department of ENT, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia; Rachmadi, L., Department of Anatomical Pathology, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia; Atmakusuma, T.D., Department of Medical Oncology, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia; Tobing, D.L., Department of Clinical Pathology, Dharmais National Cancer Hospital, Jakarta – Indonesia, Jl. Letjen S. Parman No. 84-86, Jakarta, 11420, Indonesia; Auzan, M., Department of Radiation Oncology, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia; Hariyanto, A.D., Department of Radiation Oncology, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia; Sulaeman, D., Department of Radiation Oncology, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia; Permata, T.B.M., Department of Radiation Oncology, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia; Handoko, Department of Radiation Oncology, Faculty of Medicine, Universitas Indonesia / Cipto Mangunkusumo National General Hospital, Jakarta – Indonesia, Jl. Salemba Raya No. 6, Jakarta, 10430, Indonesia