title: [Endoscopic, histologic and cytologic study of the duodenum].
mesh_terms: D001706:Biopsy; D004386:Duodenum / Q000166:cytology*; D019723:Endoscopes; D006801:Humans; D007413:Intestinal Mucosa / Q000166:cytology
vernacular_title: Studio endocopico, istologico e citologico del duodeno.