Probe:	H19 probe18
Probe preparation:	Antisense labelled with digoxigenin RNA

Structure	Level	Pattern	Image	Note
TS17: atrium endocardial lining	Present		8A
TS17: primitive ventricle endocardial lining	Present		8A
TS17: visceral pericardium	Present		8A	Expression is observed in the epicardium.

Structure	Level	Pattern	Image	Note
TS17: atrium endocardial lining	Present		8B

Structure	Level	Pattern	Image	Note
TS17: atrium endocardial lining	Present		8C

Structure	Level	Pattern	Image	Note
TS17: primitive ventricle cardiac muscle	Present		8F
TS17: primitive ventricle endocardial lining	Present		8F

Structure	Level	Pattern	Image	Note
TS17: primitive ventricle endocardial lining	Present		8G

Structure	Level	Pattern	Image	Note
TS20: endocardial lining	Present		9A	Expression is observed in the endocardium.
TS20: cardiac muscle tissue	Present		9A	Expression is observed in the myocardium.
TS20: visceral pericardium	Present		9A	Expression is observed in the epicardium.
TS20: left atrium cardiac muscle	Present		9A , 9B , 9C
TS20: left atrium endocardial lining	Present		9A , 9B , 9C
TS20: atrioventricular endocardial cushion	Present		9D , 9A , 9B	Within the atrioventricular valve cushions, expression is observed in the endocardial lining as well as in the mesenchymal component.
TS20: heart mesenchyme	Present		9D , 9A , 9B	Within the atrioventricular valve cushions, expression is observed in the endocardial lining as well as in the mesenchymal component.
TS20: right atrium cardiac muscle	Present		9E , 9A
TS20: right atrium endocardial lining	Present		9E , 9A
TS20: right ventricle cardiac muscle	Present		9F , 9A
TS20: right ventricle endocardial lining	Present		9F , 9A
TS20: left ventricle endocardial lining	Present		9A , 9G

Structure	Level	Pattern	Image	Note
TS22: right atrium endocardial lining	Present		10A , 10a'
TS22: visceral pericardium	Present		10a' , 10A	Expression is seen in the epicardium.
TS22: right atrium cardiac muscle	Absent		10A

Structure	Level	Pattern	Image	Note
TS22: right ventricle endocardial lining	Present		10B , 10d' , 10D
TS22: right ventricle cardiac muscle	Absent		10D , 10B
TS22: left ventricle endocardial lining	Present		10e' , 10E , 10B
TS22: left ventricle cardiac muscle	Absent		10E , 10B
TS22: atrioventricular valve	Present		10b' , 10B , 10b''	Expression is observed in valve leaflets/mesenchymal component.
TS22: visceral pericardium	Present		10B , 10e' , 10d'	Expression is observed in the epicardium.

Structure	Level	Pattern	Image	Note
TS22: left atrium endocardial lining	Present		10C , 10c'
TS22: visceral pericardium	Present		10C , 10c'	Expression is seen in the epicardium.
TS22: left atrium cardiac muscle	Absent		10C

Structure	Level	Pattern	Image	Note
TS24: endocardial lining	Present			Expression is observed in the endocardium.
TS24: visceral pericardium	Present			Expressoin is observed in the epicardium.
TS24: cardiac muscle tissue	Absent			Myocardial expression is not observed.

Structure	Level	Pattern	Image	Note
TS27: ventricle endocardial lining	Present		11A	Expression is mainly localized on the trabecular crypts.
TS27: tricuspid valve	Present	Regionally restricted	11a' , 11A	Expression is confined to the endocardial lining.
TS27: mitral valve	Present	Regionally restricted	11a'' , 11A	Expression is confined to the endocardial lining.
TS27: visceral pericardium	Absent		11A	No expression is seen in the epicardium.

Structure	Level	Pattern	Image	Note
TS27: ventricle endocardial lining	Present		11B , 11b' , 11b''	Expression is mainly localized on the trabecular crypts.
TS27: visceral pericardium	Absent		11B	No expression is seen in the epicardium.

Structure	Level	Pattern	Image	Note
TS27: ventricle endocardial lining	Present		11C/D	Cytoplasmic expression is observed.

Structure	Level	Pattern	Image	Note
TS27: right atrium endocardial lining	Present		11E , 11e'	Expression is seen in the endocardium of the right atrium.
TS27: visceral pericardium	Absent		11E	No expression is seen in the epicardium.

Structure	Level	Pattern	Image	Note
TS27: left atrium endocardial lining	Absent		11F	No/scarce expression is seen in the endocardium of the left atrium.