The usefulness of transesophageal echocardiography in the diagnosis of pulmonary thromboembolism

1. San Román, J.A.
2. Vilacosta, I.
3. Zamorano, J.
4. Almería, C.
5. Cortés, F.J.
6. Iturralde, E.
7. Sánchez Harguindey, L.