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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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True statement regarding 'Fistula in ano' is:
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The correct answer is  Intersphincteric fistula is the most common type of 'fistula in ano'. Ref: Bailey and Love's Sho Practice of Surgery, 25th Edition, Page 1263.