AP	Action potential
APD	Action potential duration
EAD	Early afterdepolarization
ECG	Electrocardiogram
ECC	Excitation-contraction coupling
EFP	Electric field potential
EGTA	Ethylene glycol tetraacetic acid
GPCRs	G protein-coupled receptors
HEK293	Human embryonic kidney 293 cells
HEPES	4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid
hERG	human Ether-à-go-go-Related Gene
hiPS-CMs	Human induced pluripotent stem cell-derived cardiomyocytes
KCNH2	Gene encoding hERG channel
LQTS	Long QT syndrome
MDP	Maximum diastolic potential
NCX	Sodium/calcium exchangers
PW	pulse widths
RMP	Resting membrane potential
SAN	Sinoatrial node
SERCA	Sarco/endoplasmic reticulum Ca2+ ATPase
TdP	Torsades de pointes
VGCC	Voltage-gated calcium channels