@misc{indiciae73c9861d005a,
  title = {[Tracing and measuring errors in the roentgenographic cephalometry].},
  author = {A Erdem and I Ceylan and E Deniz},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2489159/},
  note = {Source identifier: 2489159}
}