Application of DCE-MRI in preoperative evaluation of fistula and fistula orifice in patients with anal fistula 
HONG Zhi-you, CHEN Yan-xin, JIANG He-li
Journal of Hebei Medical University . 2021, (7): 837 -840,845 .  DOI: 10.3969/j.issn.1007-3205.2021.07.019