@misc{indiciaeda13354adbb9,
  title = {[Tracheostomy. Indications, methods, risks].},
  author = {M K Walz},
  year = {2002},
  doi = {10.1007/s00101-001-0267-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/11963305/},
  note = {Source identifier: 11963305}
}