Anatomy of the external anal sphincter
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Changyul Oh; Allan E. Kark
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Article
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1972
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John Wiley and Sons
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English
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## Abstract The anatomy fo the external anal sphincter has been studied in 48 adult cadaveric and surgical specimens by anatomical dissection and histological sections in three-dimensional planes. The bilaminar and trilaminar concepts of external anal sphincteric anatomy are reviewed. The significa