title: Lactose intolerance: hereditary or acquired? Effect of prolonged milk feeding.
mesh_terms: D000818:Animals; D044466:Asian People; D002648:Child; D002675:Child, Preschool; D004032:Diet; D005260:Female; D006801:Humans; D007787:Lactose Intolerance / Q000453:epidemiology / Q000235:genetics*; D008892:Milk; D012846:Singapore