@misc{indiciae48909c417215,
  title = {Use of echoencephalography.},
  author = {M DE VLIEGER and H J RIDDER},
  year = {1959},
  doi = {10.1212/wnl.9.4.216},
  url = {https://pubmed.ncbi.nlm.nih.gov/13644550/},
  note = {Source identifier: 13644550}
}