TY  - RPRT
TI  - Simple charcoal filter for closed circuit anesthesia.
AU  - R K Baumgarten
PY  - 1985
DO  - 10.1097/00000542-198507000-00033
UR  - https://pubmed.ncbi.nlm.nih.gov/4014766/
ID  - 4014766
ER  -