Subject(s)

Adenomatous Polyps/pathology , DNA Glycosylases/genetics , Duodenal Neoplasms/epidemiology , Adenomatous Polyps/diagnosis , Adenomatous Polyps/genetics , Adult , Aged , Aged, 80 and over , Duodenal Neoplasms/diagnosis , Duodenal Neoplasms/genetics , Duodenal Neoplasms/pathology , Duodenoscopy/statistics & numerical data , Duodenum/diagnostic imaging , Duodenum/pathology , Female , Humans , Intestinal Mucosa/diagnostic imaging , Intestinal Mucosa/pathology , Male , Middle Aged , Prevalence , Prospective Studies , Young Adult