Milk intolerance in young Ethiopian school children.
D000005:Abdomen; D000818:Animals; D002648:Child; D005002:Ethiopia; D006801:Humans; D007787:Lactose Intolerance / Q000150:complications / Q000453:epidemiology*; D008892:Milk / Q000009:adverse effects; D010146:Pain / Q000209:etiology; D012572:School Health Services; D013997:Time Factors