title: Lactase deficiency and lactose malabsorption.
mesh_terms: D000818:Animals; D005696:Galactosidases / Q000172:deficiency*; D006801:Humans; D007421:Intestine, Small / Q000201:enzymology / Q000503:physiopathology; D007787:Lactose Intolerance / Q000201:enzymology / Q000209:etiology* / Q000503:physiopathology; D007789:Lactose Tolerance Test / Q000379:methods; D001616:beta-Galactosidase / Q000172:deficiency* / Q000378:metabolism
chemical_list: D005696:Galactosidases; D001616:beta-Galactosidase