TY  - RPRT
TI  - A simple flowmeter for unusual gases.
AU  - I Farquhar
AU  - P Eldridge
PY  - 1990
DO  - 10.1093/bja/64.1.113
UR  - https://pubmed.ncbi.nlm.nih.gov/2137347/
ID  - 2137347
ER  -