1. Analysis of R-R intervals in patients with atrial fibrillation at rest and during exercise;Bootsma;Circulation,1970
2. Supernormality;Childers;Cardiovasc. Clin,1974
3. Concealed conduction during atrial fibrillation;Cohen;Amer. J. Cardiol,1970
4. Alternate patterns of premature ventricular excitation during induced atrial bigeminy;Cohen;Circulation,1969
5. Concealed intraventricular conduction (ClVC) revealed by His bundle (HB) recordings (Abstract);Cohen;Circulation,1974