1. Revascularization of the heart—numerators in search of denominators;Spodick;Amer Heart J,1971
2. Reply to Letter to the Editor;Sahiston;Circulation,1971
3. The dyskinetic discipline;Schatz;Chest,1971
4. Hellerstein H: Verbal communication
5. Precursors and factors affecting prognosis in angina pectoris;Frank,1971