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Figure 1: (a and b). A mid-esophageal bicaval transesophageal echocardiography view with a Color Doppler blood flow map showing the superior and inferior vena cava and the interatrial septum (a) and 2D echocardiography displaying the sinus venosus atrial septal defect (b)

Figure 1: (a and b). A mid-esophageal bicaval transesophageal echocardiography view with a Color Doppler blood flow map showing the superior and inferior vena cava and the interatrial septum (a) and 2D echocardiography displaying the sinus venosus atrial septal defect (b)