Karakteristik dan Penilaian Kerentanan sebagai Faktor Risiko Toksisitas Akut dan Selesai Radiasi Tepat Waktu pada Pasien Usia Lanjut yang Menjalani Terapi Radiasi Eksterna di RSCM = Characteristics and Assessment of Frailty as Risk Factor of Therapy Related Acute Toxicities and Delayed Overall Treatment Time in Elderly Patients Treating with External Beam Radiation Therapy at RSCM