Peroral intestinal mucosal biopsies in infants and children.
D000293:Adolescent; D001706:Biopsy / Q000295:instrumentation*; D002446:Celiac Disease / Q000175:diagnosis / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D003968:Diarrhea, Infantile / Q000175:diagnosis; D006801:Humans