title: Childhood epidemiology. Gastro-intestinal tract.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003906:Developing Countries; D003967:Diarrhea / Q000453:epidemiology; D005260:Female; D005759:Gastroenteritis / Q000453:epidemiology; D005767:Gastrointestinal Diseases / Q000151:congenital / Q000453:epidemiology*; D006627:Hirschsprung Disease / Q000453:epidemiology; D006801:Humans; D006984:Hypertrophy / Q000151:congenital / Q000453:epidemiology; D007223:Infant; D007231:Infant, Newborn; D007787:Lactose Intolerance / Q000453:epidemiology; D008297:Male; D011707:Pyloric Stenosis / Q000151:congenital / Q000453:epidemiology; D012400:Rotavirus Infections / Q000453:epidemiology; D006113:United Kingdom