Esophagoscopy.
D000818:Animals; D004106:Dilatation; D004283:Dog Diseases / Q000175:diagnosis; D004285:Dogs; D004935:Esophageal Diseases / Q000175:diagnosis / Q000662:veterinary; D004940:Esophageal Stenosis / Q000175:diagnosis / Q000662:veterinary; D004942:Esophagitis, Peptic / Q000175:diagnosis / Q000662:veterinary; D020701:Esophagoscopes; D004945:Esophagoscopy / Q000662:veterinary*; D004947:Esophagus / Q000033:anatomy & histology; D005336:Fiber Optic Technology; D005547:Foreign Bodies / Q000175:diagnosis / Q000662:veterinary; D008722:Methods