Hydrogen/Expired gas^3.5H post dose lactulose:VFr:Pt:Exhl gas:Qn
hydrogen/expired gas^3.5h post dose lactulose:vfr:pt:exhl gas:qn
Hydrogen/Expired gas 3.5 Hr post dose lactose (Exhl gas) [Volume fraction]
hydrogen/expired gas 3.5 hr post dose lactose (exhl gas) [volume fraction]