TY  - RPRT
TI  - Monitoring preoxygenation.
AU  - I T Campbell
AU  - P C Beatty
PY  - 1994
DO  - 10.1093/bja/72.1.3
UR  - https://pubmed.ncbi.nlm.nih.gov/8110546/
ID  - 8110546
ER  -