Hydrogen/Expired gas^3H post dose lactulose:VFr:Pt:Exhl gas:Qn
hydrogen/expired gas^3h post dose lactulose:vfr:pt:exhl gas:qn
Hydrogen/Expired gas^3 hours post dose lactulose:Volume Fraction:To identify measures at a point in time:Exhaled gas (breath):Quantitative
hydrogen/expired gas^3 hours post dose lactulose:volume fraction:to identify measures at a point in time:exhaled gas (breath):quantitative