@misc{indiciae739b84feb94f,
  title = {Basic transthoracic echocardiography.},
  author = {Graham S Hillis and Peter Bloomfield},
  year = {2005},
  doi = {10.1136/bmj.330.7505.1432},
  url = {https://pubmed.ncbi.nlm.nih.gov/15961816/},
  note = {Source identifier: 15961816}
}