title: Letter: Abnormal mucosa in gastroenteritis.
mesh_terms: D001706:Biopsy; D004386:Duodenum / Q000473:pathology*; D005759:Gastroenteritis / Q000473:pathology*; D005951:Glucose Tolerance Test; D006801:Humans; D007223:Infant; D007413:Intestinal Mucosa / Q000473:pathology*; D013997:Time Factors