title: Atrial septal defect; a study of intracardiac shunts, ventricular outputs, and pulmonary pressure gradient.
authors.forename: J B
authors.initials: JB
authors.lastname: HICKAM
mesh_terms: D006321:Heart; D006344:Heart Septal Defects, Atrial; D006352:Heart Ventricles; D006801:Humans