title: [Endoscopy as a primary method in esophago-gastro-duodenal exploration].
mesh_terms: D003951:Diagnostic Errors; D004381:Duodenal Ulcer / Q000175:diagnosis*; D004724:Endoscopy; D004935:Esophageal Diseases / Q000175:diagnosis*; D004938:Esophageal Neoplasms / Q000175:diagnosis; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis; D006801:Humans; D013276:Stomach Ulcer / Q000175:diagnosis*
vernacular_title: L'endoscopie de première intention dans l'exploration oeso-gastro-duodénale.