Hydrogen+Methane/Expired gas^3H post dose lactose PO:VFr:Pt:Exhl gas:Qn
hydrogen+methane/expired gas^3h post dose lactose po:vfr:pt:exhl gas:qn
Hydrogen+Methane/Expired gas^3H post dose lactose PO:VFr:Pt:Exhl gas:Qn
hydrogen+methane/expired gas^3h post dose lactose po:vfr:pt:exhl gas:qn