title: Cancer of the gastrointestinal tract. Endoscopic diagnosis.
mesh_terms: D000758:Anesthesia; D001285:Atropine / Q000008:administration & dosage; D001706:Biopsy; D003975:Diazepam / Q000008:administration & dosage; D004724:Endoscopy; D004938:Esophageal Neoplasms / Q000175:diagnosis* / Q000473:pathology; D004945:Esophagoscopy; D005336:Fiber Optic Technology; D006801:Humans; D007273:Injections, Intramuscular; D007275:Injections, Intravenous; D008614:Meperidine / Q000008:administration & dosage; D008722:Methods; D011292:Premedication; D013274:Stomach Neoplasms / Q000175:diagnosis*; D013748:Tetracaine / Q000008:administration & dosage
chemical_list: D013748:Tetracaine; D001285:Atropine; D008614:Meperidine; D003975:Diazepam