Cineradiographic and manometric studies of oesophageal function were carried out in four different groups of patients (those suspected of having oesophageal disease, with and without symptoms; and in two groups of diabetes, with and without diabetic neuropathy). All groups were found to have abnormal oesophageal function, and this was not commoner in those with diabetic neuropathy.
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William L. Silber (1969) studied this question.
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