@misc{indiciae5f9b8773d7c5,
  title = {Who should do echography?},
  author = {A K Freimanis},
  year = {1969},
  doi = {10.2214/ajr.105.2.454},
  url = {https://pubmed.ncbi.nlm.nih.gov/5764669/},
  note = {Source identifier: 5764669}
}