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2. [Pathophysiologic role of the internal anal sphincter in chronic anal fissure]. Braun J, Raguse T. Z Gastroenterol; 1985 Oct; 23(10):565-72. PubMed ID: 4082687 [Abstract] [Full Text] [Related]
4. Is there really sphincter spasm in anal fissure? Kuypers HC. Dis Colon Rectum; 1983 Aug; 26(8):493-4. PubMed ID: 6872775 [Abstract] [Full Text] [Related]
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