Table 1: All embryos.

Information on embryo stage (at surgery and post-culture), observed cardiac defects and their locations for each processed embryo (n = 35).

Embryo	Ablation type	Stage at ablation		Stage post culture	Septation defect	OFT septal defects		Interventricular communication		Arteries
		Somite number	HH			connection of A and P	level	Type	level	number	fusion order
310	right	9.5	HH10	HH34+	Double outlet right ventricle	none	na	full	OFT roots	5	abnormal
317	right	9.5	HH10	HH34	partial	none	na	hairline	OFT roots	5	abnormal
390	right	10	HH10	HH33+	Double outlet right ventricle	none	na	full	OFT roots	4	abnormal
411	right	10	HH10	HH33	Common arterial trunk	yes	above semilunar valves	full	OFT roots	4	abnormal
413	right	10.25	HH10	HH34	none	none	na	none	na	4	abnormal
423	right	10.5	HH10+	HH33	partial	none	na	hairline	OFT roots	5	normal
435	right	10.25	HH10	HH34	none	none	na	none	na	5	normal
459	right	10.75	HH10+	HH32	none	none	na	none	na	5	abnormal
492	right	10	HH10	HH34+	Double outlet right ventricle	none	na	full	OFT roots	5	normal
504	right	10.5	HH10+	HH34+	none	none	na	none	na	5	abnormal
526	right	10.75	HH10+	HH34+	Double outlet right ventricle	none	na	full	OFT roots	5	abnormal
530	right	10.5	HH10+	HH33	Common arterial trunk	yes	at level of semilunar valves	full	OFT roots	4	abnormal
242	left	10	HH10	HH32	none	none	na	no	na	5	normal
285	left	10.5	HH10+	HH32	Double outlet right ventricle	none	na	full	OFT roots	5	abnormal
299	left	10.5	HH10+	HH34+	Double outlet right ventricle	none	na	full	OFT roots to ventricles	5	normal
300	left	10.5	HH10+	HH34	none	none	na	no	na	5	normal
409	left	10.75	HH10+	HH33	none	none	na	no	na	5	normal
412	left	10.75	HH10+	HH34	partial	none	na	hairline	OFT roots	5	normal
414	left	10.5	HH10+	HH34	partial	none	na	hairline	OFT roots	5	normal
455	left	9.75	HH10	HH33	partial	none	na	hairline	OFT roots	5	normal
495	left	9.75	HH10	HH34+	partial	none	na	hairline	OFT roots	5	normal
503	left	9.5	HH10	HH32	partial	none	na	hairline	OFT roots	5	normal
516	left	9.5	HH10	HH33	none	none	na	no	na	5	normal
Sham7	sham	na	na	HH32+	partial	none	na	hairline	OFT roots	5	normal
Sham18	sham	na	na	HH32+	none	none	na	none	na	5	normal
Sham27b	sham	na	na	HH34+	none	none	na	none	na	5	normal
Sham32	sham	na	na	HH34+	none	none	na	none	na	5	normal
Sham37	sham	na	na	HH35	none	none	na	none	na	5	normal
Sham40	sham	na	na	HH34	none	none	na	none	na	5	normal
Sham44	sham	na	na	HH34+	none	none	na	none	na	5	normal
Sham51	sham	na	na	HH33	none	none	na	none	na	5	normal
Sham64	sham	na	na	HH34	none	none	na	none	na	5	normal
Sham68	sham	na	na	HH33	none	none	na	none	na	5	normal
Sham75	sham	na	na	HH34	none	none	na	none	na	5	normal
Sham78	sham	na	na	HH33	none	none	na	none	na	5	normal