TY  - RPRT
TI  - Refining intraoperative echocardiography.
AU  - Zak Hillel
PY  - 2003
DO  - 10.1016/s1053-0770(03)00168-x
UR  - https://pubmed.ncbi.nlm.nih.gov/12968227/
ID  - 12968227
ER  -