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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Motility disorders of the oesophagus are best diagnosed by -
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The correct answer is  <p>Davidson&;s principles and practice of medicine 22nd edition. *Manometry confirms the high pressure ,non relaxing lower oesophageal sphincter with poor contractility of the oesophageal body .</p>