Lactose feeding and lactase deficiency.
D000328:Adult; D000818:Animals; D005006:Ethnicity; D005696:Galactosidases / Q000378:metabolism; D000882:Haplorhini; D006801:Humans; D007422:Intestines / Q000201:enzymology; D007785:Lactose; D007787:Lactose Intolerance / Q000201:enzymology / Q000209:etiology* / Q000235:genetics; D008251:Macaca; D011323:Primates; D013045:Species Specificity
D005696:Galactosidases; D007785:Lactose