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2. Hiatus hernia;Atkinson, M.;Brit. med. J,1967
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4. The pulmonary complications of oesophageal disease;Belsey, R.;Brit. J. Dis. Chest,1960
5. Case records of the Massachusetts General Hospital. Case 44431;Castleman, B.; Kibbee, B.U.;New Engl. J. Med,1958