Frontiers | An Augmented Negative Force-Frequency Relationship and Slowed Mechanical Restitution Are Associated With Increased Susceptibility to Drug-Induced Torsade de Pointes Arrhythmias in the Chronic Atrioventricular Block Dog
Ventricular extrasystoles in athletes: what can be learned from the clinical history, clinical examination, the electrocardiogram and the initial approach?