1. Chronic heart block in adults: clinical and electrophysiological observations;Rosen;Arch Intern Med,1973
2. Treatment of atrioventricular block;Kastor,1977
3. Atrioventricular block: localization and classification by His bundle recordings;Narula;Am J Med,1971
4. Atrioventricular block; the value of intracardiac recordings;Puech,1975
5. His bundle recording in acquired conduction disease;Dhingra;Arch Intern Med,1975