AP	Action potential
APDxx	Action potential duration at xx%
hiPSC	Human induced pluripotent stem cell
APA	Action potential amplitude
DAD	Delayed afterdepolarization
dV/dtmax	Maximum upstroke velocity
EAD	Early afterdepolarization
EHT	Engineered heart tissue
FDA	Food and drug administration
hiPSC-CM	Human induced pluripotent stem cell-derived cardiomyocyte
ICaL	L-type Ca2+ current
If	Funny current
IKr	Rapid delayed rectifying K+ current
IKs	Slow delayed rectifying K+ current
IK1	Inward rectifying K+ current
INa	Fast Na+ current
INaK	Na+/K+ pump
INaL	Late Na+ current
INCX	Na+/Ca2+ exchanger
IpCa	Sarcolemmal Ca2+ pump
IRyR	RyR-sensitive Ca2+ release
ISERCA	SERCA pump
Ito	Transient outward K+ current
LB	Lower bound
LQT1_CTRL	hiPSC-CM population with control IKs from [3]
LQT1_MUT	hiPSC-CM population with mutant IKs from [3]
LQT2_CTRL	hiPSC-CM population with control IKr from [4]
LQT2_MUT	hiPSC-CM population with mutant IKr from [4]
MDP	Maximum diastolic potential
mean	Mean value
Paci2018	hiPSC-CM model from [20]
Peak	Peak potential
Rate	Spontaneous action potential rate
SD	Standard deviation
UB	Upper bound
ΔAPD90%	Percent APD90 variation