TY  - RPRT
TI  - [External quality assurance in anesthesia].
AU  - W Heinrichs
AU  - H J Baldering
AU  - A Köhler
PY  - 1997
DO  - 10.1055/s-2007-995070
UR  - https://pubmed.ncbi.nlm.nih.gov/9333332/
ID  - 9333332
ER  -