1. Lorell BH, Braunwald E. Pericardial disease. In: Braunwald E, editor. Heart disease. Philadelphia: WB Saunders; 1992. p. 1465–516.
2. Hagan AD. Evaluation of pericardial diseases by M-mode and two-dimensional echocardiography. In: Mason DT, editor. Advances in heart disease. New York: Grune & Stratton; 1980. p. 699–702.
3. Guberman BA, Fowler NO, Engel PJ, Gueron M, Allen JM. Cardiac tamponade in medical patients. Circulation. 1981;64(3):633–40.
4. Chandraratna PA. Echocardiography and Doppler ultrasound in the evaluation of pericardial disease. Circulation. 1991;84(3 Suppl):I303–10.
5. Horowitz MS, Schultz CS, Stinson EB, Harrison DC, Popp RL. Sensitivity and specificity of echocardiographic diagnosis of pericardial effusion. Circulation. 1974;50(2):239–47.