@misc{indiciaef8d3517a7af2,
  title = {Letter: Ultrasonic cephalometry.},
  author = {V Poll},
  year = {1974},
  doi = {10.1016/s0140-6736(74)90985-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/4143050/},
  note = {Source identifier: 4143050}
}