title: Lactose and milk intolerance in recurrent abdominal pain of childhood.
mesh_terms: D000005:Abdomen; D000293:Adolescent; D000818:Animals; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007787:Lactose Intolerance / Q000175:diagnosis*; D008297:Male; D008892:Milk / Q000009:adverse effects; D010146:Pain / Q000209:etiology*; D012008:Recurrence