The Respiratory Dead Space Measured by Single Breath Analysis of Oxygen, Carbon Dioxide, Nitrogen or Helium by J. Bartels and others 2026-11-05
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Journal of Clinical Investigation 33(1), 41–48 (1 January 1954), DOI 10.1172/JCI102868. Primary first byline J. Bartels; title identifies a comparison of single-breath gas-analysis measurements. The indexed opening of page 41 describes simultaneous gas-fraction and mouth-flow recording following an oxygen breath.
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