[Endoscopic frequency of upper digestive pathology].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002677:Chile; D004378:Duodenal Diseases / Q000453:epidemiology*; D004724:Endoscopy; D004935:Esophageal Diseases / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013272:Stomach Diseases / Q000453:epidemiology*
Prevalencia endoscópica de patología disgestiva alta.