title: Lactase activity levels in Nigeria--genetic or acquired phenomenon?
mesh_terms: D000222:Adaptation, Physiological; D000328:Adult; D000367:Age Factors; D000818:Animals; D002648:Child; D002675:Child, Preschool; D004040:Dietary Carbohydrates; D005006:Ethnicity; D005247:Feeding Behavior; D005696:Galactosidases / Q000378:metabolism*; D005823:Genetics; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007422:Intestines / Q000201:enzymology; D007785:Lactose; D007787:Lactose Intolerance / Q000209:etiology* / Q000235:genetics; D008892:Milk; D009549:Nigeria; D014886:Weaning
chemical_list: D004040:Dietary Carbohydrates; D005696:Galactosidases; D007785:Lactose