title: Two-dimensional echocardiographic identification of aortico-left ventricular tunnel.
mesh_terms: D001011:Aorta / Q000002:abnormalities*; D004452:Echocardiography; D005260:Female; D006352:Heart Ventricles / Q000002:abnormalities*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn