Hydrogen/Expired gas^50M post dose lactose PO:VFr:Pt:Exhl gas:Qn
hydrogen/expired gas^50m post dose lactose po:vfr:pt:exhl gas:qn
Hydrogen/Expired gas^50M post dose lactose PO:VFr:Pt:Exhl gas:Qn
hydrogen/expired gas^50m post dose lactose po:vfr:pt:exhl gas:qn