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3. The treatment of spasmodic dysphagia by sympathetic denervation;Rogers;Brit. J. Surg.,1935
4. Achalasia of the cardia;Hertz (Hurst);Quart. J. Med.,1915
5. Achalasia of the cricopharyngeal sphincter;Asherson;J. Internat. Coll. Surgeons,1953