@misc{indiciae94b112e7107e,
  title = {Brain tumors in two-dimensional echo-encephalography.},
  author = {T Valkeakari},
  year = {1970},
  doi = {10.1111/j.1651-2227.1970.tb14668.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5276962/},
  note = {Source identifier: 5276962}
}