1. Friedberg CK: Diseases of the Heart, ed 3. Philadelphia, WB Saunders Co, 1966
2. CPI (Cardiac Pacemakers Inc) Symposium on Newer Aspects of Pacing. St. Paul, Sep 14–16, 1982
3. Effect of a Conditioning Program in Patients Taking Propranolol for Angina pectoris
4. American College of Sports Medicine: Guidelines for Graded Exercise: Testing and Exercise Prescription, ed 2. Philadelphia, Lea and Febiger, 1980
5. Exercise stress testing for exposure of cardiac arrhythmia