Complete deficiency of brush-border lactase in congenital lactose malabsorption.
D000328:Adult; D001706:Biopsy; D002648:Child; D002675:Child, Preschool; D005260:Female; D005696:Galactosidases / Q000032:analysis*; D005959:Glucosidases / Q000032:analysis; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D007583:Jejunum / Q000201:enzymology / Q000473:pathology; D007787:Lactose Intolerance / Q000201:enzymology* / Q000473:pathology; D008297:Male
D005696:Galactosidases; D005959:Glucosidases