title: Lactose tolerance test by hydrogen breath method in Chinese.
mesh_terms: D000293:Adolescent; D000328:Adult; D001944:Breath Tests; D002648:Child; D002675:Child, Preschool; D002681:China; D005260:Female; D006801:Humans; D006859:Hydrogen / Q000032:analysis*; D007787:Lactose Intolerance / Q000453:epidemiology*; D007789:Lactose Tolerance Test / Q000379:methods; D008297:Male; D008875:Middle Aged
chemical_list: D006859:Hydrogen