1. Echocardiography: Pericardial thickening and constrictive pericarditis;Schnittger;Am J Cardiol,1978
2. Echocardiographic diagnosis of thickened pericardium;Chandraratna;Cardiovasc Med,1978
3. Premature pulmonic valve opening;Wann;Circulation,1977
4. Echocardiographic assessment of constrictive pericarditis;Chandraratna;Chest,1979
5. Endocardiography;Feigenbaum,1976