CSE	Cigarette smoke extract
CYP	Cytochrome P450
CYP2A13	Cytochrome P450 2A13
NNK	4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone
3-MI	3-methylindole
AFB1	Aflatoxin B1
BEAS-2B	Immortalized human bronchial epithelial (cells)
B-2A13	BEAS-2B cells stably expressing CYP2A13
HPLC	high-performance liquid chromatography
UPLC-MS/MS	Ultra-performance liquid chromatography tandem mass-spectrometry
C-PARP	Cleaved Poly (Adenosine Diphosphate-Ribose) Polymerase
PARP	Poly (Adenosine Diphosphate-Ribose) Polymerase
Bcl-2	B cell lymphoma-2
Bax	Bcl-2 Associated X Protein