Ali, Liaqat, et al. “COMPARISON OF SUCCESSFUL OUTCOME OF FLAP VERSUS NO-FLAP IN O’CONOR & SOKOL TECHNIQUE FOR VESICOVAGINAL FISTULA REPAIR”. KHYBER MEDICAL UNIVERSITY JOURNAL, vol. 12, no. 3, Sept. 2020, pp. 225-8, doi:10.35845/kmuj.2020.20253.