@misc{indiciae74dc891137be,
  title = {Three-dimensional and four-dimensional echocardiography.},
  author = {E O Ofili and N C Nanda},
  year = {1994},
  doi = {10.1016/0301-5629(94)90024-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/7863556/},
  note = {Source identifier: 7863556}
}