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The relationship between the healing rate of an anal fistula plug and year. From 2008–2012, the annual percent healing rate of an anal fistula plug was 50% (3/3), 62% (24/39), 42% (24/57), 80% (12/15), and 67% (12/18), respectively. The long-term healing rate of an anal fistula plug shows an increasing trend year-by-year..
