参考文献
[1]Madalinski M H . Identifying the best therapy for chronic anal fissure[J]. World Journal of Gastrointestinal Pharmacology and Therapeutics, 2011, 2(2):9-16.
[2]Zaghiyan K N , Fleshner P . Anal Fissure[J]. Clinics in Colon and Rectal Surgery, 2011, 24(1):022-030.
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