TY  - RPRT
TI  - Percutaneous dilational tracheostomy technique and experience.
AU  - P D Cook
AU  - V I Callanan
PY  - 1989
DO  - 10.1177/0310057x8901700410
UR  - https://pubmed.ncbi.nlm.nih.gov/2688477/
ID  - 2688477
ER  -