title: [Gray areas of upper panendoscopy].
mesh_terms: D001466:Barium Sulfate; D001706:Biopsy; D003937:Diagnosis, Differential; D004384:Duodenoscopy; D004935:Esophageal Diseases / Q000175:diagnosis / Q000473:pathology; D004938:Esophageal Neoplasms / Q000175:diagnosis / Q000473:pathology; D004945:Esophagoscopy; D005500:Follow-Up Studies; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D005773:Gastroscopy; D006801:Humans; D011859:Radiography
chemical_list: D001466:Barium Sulfate
vernacular_title: Grauzonen der oberen Panendoskopie.