@misc{indiciae69594b65c1c9,
  title = {Refining intraoperative echocardiography.},
  author = {Zak Hillel},
  year = {2003},
  doi = {10.1016/s1053-0770(03)00168-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/12968227/},
  note = {Source identifier: 12968227}
}