Table 1.

Differences in terms of overall survival (OS) and progression-free survival (PFS) between carbon ions radiotherapy, photon beams radiotherapy and proton beam radiotherapy.

Authors	Technique	Schedules	OS	PFS
Lautenschlaeger F.S. et al. [24]	Carbon Ionsradiotherapy (CIRT)	45 Gy, median fraction size 3 Gy per fx	8.0 months	5.5 months
	Fractionated stereotactic radiotherapy with photons (FSRT)	39 Gy, median fraction size 3 Gy per fx	6.5 months	3.9 months
Saeed A.M. et al. [25]	Proton beam therapy (PBRT)	46.2 Gy (range, 25–60 Gy), median fraction size 2.2 per fx	14.2 months	13.9 months