TABLE 1.

Data collected from MEA analysis of whole and dissociated spheroids.

Format	Group	Beat period (s)	Spike amplitude (mV)	FPD (ms)	Conduction velocity (cm/s)	Beat amplitude (%)	ECD (ms)	APD50 (ms)	APD90 (ms)
Whole Spheroid	C1	0.45 ± 0.07	0.61 ± 0.12	179 ± 26	27.6 ± 10.9	1.90 ± 0.27	275 ± 83
	C3	0.50 ± 0.06	0.80 ± 0.15	231 ± 40	33.6 ± 8.0	1.88 ± 0.33	207 ± 22
	C4	0.65 ± 0.07	1.43 ± 0.23	198 ± 32	28.5 ± 6.3	2.83 ± 0.57	222 ± 35
Isolated CMs (Paced at 3 Hz)	C1	0.44 ± 0.01	1.87 ± 0.12	206 ± 2	30.7 ± 1.1	2.02 ± 0.13	142 ± 3	184 ± 3	222 ± 2
	C3	0.43 ± 0.01	1.95 ± 0.15	209 ± 2	34.0 ± 1.9	2.10 ± 0.19	144 ± 3	186 ± 3	225 ± 3
	C4	0.42 ± 0.01	1.85 ± 0.24	218 ± 5	59.3 ± 14.7	1.74 ± 0.17	146 ± 3	179 ± 3	224 ± 4