title: Letter: Virus particles in duodenal biopsy specimens.
mesh_terms: D000208:Acute Disease; D001706:Biopsy; D004386:Duodenum / Q000382:microbiology* / Q000473:pathology; D005759:Gastroenteritis / Q000175:diagnosis / Q000209:etiology / Q000382:microbiology* / Q000473:pathology; D006801:Humans; D007223:Infant; D007413:Intestinal Mucosa / Q000382:microbiology* / Q000473:pathology; D014777:Virus Diseases / Q000175:diagnosis*