Efficacy of video-assisted anal fistula treatment combined with closure of the internal opening using a stapler for Parks II anal fistula - Zhang, Yuru; Li, Fei; Zhao, Tuanjie; Cao, Feng; Zheng, Yamin; Li, Ang (Annals of Translational Medicine; Vol 8, No 22 (November 30, 2020): Annals of Translational Medicine, 2020)