1. Practical electrocardiography;Marriott,1988
2. The 12 lead electrocardiogram;Schamroth,1989
3. Electrocardiography in clinical practice.;Chou,1991
4. Principles of clinical electrocardiography;Goldschlanger,1989
5. Echocardiographic evaluations of pericardial diseases;Teicholz;Prog Cardiovasc Dis,1978