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Prof. Jean-Luc Faucheron is a consultant for AMI. The other authors declare that they have no conflict of interest.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in this study.
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Trilling, B., Pflieger, H. & Faucheron, J.L. Decreased blood flow to the posterior anal canal shown during Doppler-guided hemorrhoidal artery ligation explains anodermal ischemia in anal fissure. Tech Coloproctol 21, 411–412 (2017). https://doi.org/10.1007/s10151-017-1636-6
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DOI: https://doi.org/10.1007/s10151-017-1636-6