TY  - RPRT
TI  - [Contrast echocardiography. Does it have a future?].
AU  - Cláudio L Pereira da Cunha
PY  - 2006
DO  - 10.1590/s0066-782x2006001500020
UR  - https://pubmed.ncbi.nlm.nih.gov/16951840/
ID  - 16951840
ER  -