title: Hydrogen breath test for lactose tolerance adapted to population screening.
mesh_terms: D001944:Breath Tests / Q000379:methods*; D002849:Chromatography, Gas; D006371:Helium; D006801:Humans; D006859:Hydrogen / Q000032:analysis*; D007789:Lactose Tolerance Test / Q000379:methods*; D008403:Mass Screening / Q000379:methods*; D013048:Specimen Handling / Q000295:instrumentation
chemical_list: D006371:Helium; D006859:Hydrogen