title: Duodenitis: an endoscopist's ruminations.
mesh_terms: D004378:Duodenal Diseases / Q000175:diagnosis*; D004381:Duodenal Ulcer / Q000175:diagnosis; D004386:Duodenum; D004724:Endoscopy; D005336:Fiber Optic Technology; D006801:Humans; D008722:Methods