1. Atrioventricular block as a complication of cardiac catheterization;Black;Circulation,1964
2. Importance of the unipolar leads in the diagnosis of dextrocardias, levocardias, dextropositions and dextrorotations;Portillo;Am. Heart J.,1959
3. Negative P waves in Lead I in dextroversion: Differential diagnosis from mirror-image dextrocardia;Mirowski;Circulation,1962
4. The architecture of the conduction system in congenital heart disease. II. Tetralogy of Fallot;Lev;A.M.A. Arch. Path.,1959
5. The architecture of the conduction system in congenital heart disease. III. Ventricular septal defect;Lev;Arch. Path.,1960