Cardiac electrical activity / Galen S. Wagner and Tobin H. Lim -- Recording the electrocardiogram / Galen S. Wagner and Tobin H. Lim -- Interpretation of the normal electrocardiogram / Galen S. Wagner and Tobin H. Lim -- Chamber enlargement / Galen S. Wagner and Tobin H. Lim -- Intraventricular conduction abnormalities / Galen S. Wagner -- Ventricular pre-excitation / Galen S. Wagner -- Myocardial ischemia, injury, and infarction / Galen S. Wagner and Tobin H. Lim -- Increased myocardial demand / Galen S. Wagner and Tobin H. Lim -- Insufficient blood supply / Galen S. Wagner and Tobin H. Lim -- Myocardial infarction / Galen S. Wagner and Tobin H. Lim -- Miscellaneous conditions / Galen S. Wagner and Tracy Y. Wang -- Introduction to arrhythmias / Galen S. Wagner -- Premature beats / Galen S. Wagner and Tracy Y. Wang -- Accelerated automaticity / Galen S. Wagner and Tracy Y. Wang -- Re-entrant atrial tachyarrhythmias: the atrial flutter/fibrillation spectrum / Galen S. Wagner -- Re-entrant junctional tachyarrhythmias / Marcel Gilbert and Galen S. Wagner -- Re-entrant ventricular tachyarrhythmias / Marcel Gilbert and Galen S. Wagner.