ATM	Ataxia telangiectasia mutated
alt-NHEJ	Alternative non-homologous end joining
B-NHEJ	Backup nonhomologous end-joining
BER	Base excision repair
51BP1	P51 binging protein 1
c-NHEJ	Canonical non-homologous end joining
CtIP	BRCA1 C-terminal Interacting Protein
D-NHEJ	DNA-PK-mediated nonhomologous end-joining
DDR	DNA damage response
DSB	DNA double strand break
ESCC	Esophageal squamous cell carcinoma
FDA	Food and drug administration
HR	Homologous recombination
MMEJ	Microhomology-mediated end-joining
NHEJ	Nonhomologous end-joining
PARPi	Poly (ADP-ribose) polymerase 1 inhibitor
Polθ	Polymerase theta
Polθi	Polymerase theta inhibitor
ROS	Reactive oxygen species
RBBP8	Retinoblastoma binding protein 8
RPA	Replication protein A
RIF1	Replication timing regulatory factor 1
SSA	Single strand annealing
SSB	Single strand break
ssDNA	Single stranded DNA
SL	Synthetic lethality
XPF	Xeroderma pigmentosum complementation group F