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The Usefulness of Endoanal Sonography in the EvaluEtion of Fistula-in-Ano.
Sang Soo Shin, Yong Yeon Jeong, Heoung Keun Kang, Eai Hong Hwang, Tae Woong Jeong, Jeong Jin Seo, Jin Gyoon Park
J Korean Soc Med Ultrasound. 1997;16(4):321-326. Published online January 1, 2001
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