@misc{indiciae01dadaeb3b3f,
  title = {Polyethylene tubes as a model for the root canal.},
  author = {P C Makkes and S K van Velzen and P R Wesselink and P C de Greeve},
  year = {1977},
  doi = {10.1016/0030-4220(77)90283-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/268581/},
  note = {Source identifier: 268581}
}