TY  - RPRT
TI  - Closed system anaesthesia--historical aspects and recent developments.
AU  - P Schober
AU  - S A Loer
PY  - 2006
DO  - 10.1017/s0265021506000871
UR  - https://pubmed.ncbi.nlm.nih.gov/16780617/
ID  - 16780617
ER  -