title: Evaluation of a hand-held hydrogen monitor in the diagnosis of intestinal lactase deficiency.
authors: Division of Communicable Diseases, St George's Hospital Medical School, London, UK.
authors: S C
authors: SC
authors: Fleming
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001944:Breath Tests / Q000295:instrumentation*; D002648:Child; D005260:Female; D006801:Humans; D006859:Hydrogen / Q000032:analysis*; D007422:Intestines / Q000201:enzymology; D007789:Lactose Tolerance Test / Q000295:instrumentation*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D001616:beta-Galactosidase / Q000172:deficiency
chemical_list: D006859:Hydrogen; D001616:beta-Galactosidase