The mean ventricular axis in congenital heart disease: a study considering the natural incidence of the malformations.
D018376:Cardiovascular Abnormalities / Q000706:statistics & numerical data*; D002319:Cardiovascular System; D004562:Electrocardiography; D006330:Heart Defects, Congenital; D006352:Heart Ventricles; D006801:Humans; D015994:Incidence
CARDIOVASCULAR DEFECTS, CONGENITAL/statistics; ELECTROCARDIOGRAPHY