TY  - RPRT
TI  - [Tracheostomy. Indications, methods, risks].
AU  - M K Walz
PY  - 2002
DO  - 10.1007/s00101-001-0267-4
UR  - https://pubmed.ncbi.nlm.nih.gov/11963305/
ID  - 11963305
ER  -