TY  - RPRT
TI  - Routine oxygen during endoscopy? An editorial review.
AU  - M R Smith
AU  - G D Bell
PY  - 1993
DO  - 10.1055/s-2007-1010320
UR  - https://pubmed.ncbi.nlm.nih.gov/8330552/
ID  - 8330552
ER  -