TY  - RPRT
TI  - End-tidal gas sampler.
AU  - J W Severinghaus
AU  - F N Hamilton
PY  - 1970
DO  - 10.1152/jappl.1970.28.2.244
UR  - https://pubmed.ncbi.nlm.nih.gov/5413315/
ID  - 5413315
ER  -