1. The spastic esophagus;Baird;Fla. Med. Assoc.,1967
2. Diffuse spasm of the lower part of the esophagus;Cassella;J.A.M.A.,1965
3. Fine-structure changes in achalasia of the esophagus. I. Vagus nerves;Cassella;Am. J. Pathol.,1965
4. Pattern of esophageal motility in diffuse spasm;Creamer;Gastroenterology,1958
5. Achalasia of the cardia; treatment with nitrites;Douthwaite;Lancet,1943