Utility of contrast echocardiography with harmonic imaging in a patient with hypertrophic cardiomyopathy and midventricular obstruction

1. Tejada, J.G.
2. Zamorano, J.L.
3. Almería, C.
4. Rodrigo, J.L.
5. Sánchez, V.
6. Serra, V.
7. Sánchez-Harguindey, L.