@misc{indiciae84bdbb5d37c3,
  title = {Echocardiography. Current concepts and clinical application.},
  author = {B L Segal and L L Konecke and N Kawai and M N Kotler and J W Linhart},
  year = {1974},
  doi = {10.1016/0002-9343(74)90451-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4602197/},
  note = {Source identifier: 4602197}
}