TY  - RPRT
TI  - Ventilation during bronchoscopy.
AU  - J M Collis
AU  - D W Bethune
PY  - 1972
DO  - 10.1093/bja/44.8.906
UR  - https://pubmed.ncbi.nlm.nih.gov/5083033/
ID  - 5083033
ER  -