CCI	Charlson co-morbidity index
CTCAE	Common toxicity criteria for adverse events
DART	Dose-differentiated accelerated radiotherapy
ECOG	Eastern cooperative oncology group
EQD2	Biologically equivalent dose in 2 Gy fractions
IMRT	Intensity modulated radiotherapy
LC	Local control
mOS	Median overall survival
MVA	Multivariate analysis
NSCLC	Non-small cell lung cancer
OAR	Organs at risk
OS	Overall survival
PS	Performance score
RT	Radiotherapy
SABR	Stereotactic ablative body therapy
SCLC	Small-cell lung cancer
UVA	Univariate analysis
VMAT	Volumetric intensity modulated arc therapy