@misc{indiciaefdd3d29d11db,
  title = {Cross-sectional echocardiography.},
  author = {M L Rigby and A N Redington},
  year = {1989},
  doi = {10.1093/oxfordjournals.bmb.a072363},
  url = {https://pubmed.ncbi.nlm.nih.gov/2695211/},
  note = {Source identifier: 2695211}
}