1. Symptoms of esophageal dysfunction;Castell,1980
2. Diagnosis and evaluation of esophageal disorders;Goff;Ear Nose Throat J,1984
3. Benign disorder of the esophagus;Sullivan;Ear Nose Throat J,1984
4. A 65-year-old man with dysphagia and dilatation of the esophagus;Ellis;N Engl J Med,1982
5. Dysphagia;Frank,1979