title: Letter: Virus particles in duodenal biopsy specimens.
mesh_terms: D001706:Biopsy; D002648:Child; D004386:Duodenum / Q000382:microbiology* / Q000473:pathology; D004992:Ethics, Medical; D005243:Feces / Q000382:microbiology; D005759:Gastroenteritis / Q000209:etiology / Q000382:microbiology / Q000473:pathology; D006801:Humans; D008297:Male; D014780:Viruses / Q000302:isolation & purification*