1. ECG of the month;Mekhamer;J Am Vet Med Assoc,1989
2. Sinus modulation of atrial parasystole;Oreto;Am J Cardiol,1986
3. Benign nature of atrial dissociation in pediatric patients;Ramos;Pediatr Cardiol,1983
4. Principles of cardiac arrhythmias;Chung,1989
5. Chou's electrocardiography in clinical practice;Surawitz,2001