Repair of Supra- and Extra-Sphincteric Fistula-in-Ano using Mucosal Advancement Flap

Jiri G. Melich, MD; Kunal Kochar, MD; Ajit Pai, MBBS, FACS; John J. Park, MD, FACS, FASCRS; Leela M. Prasad, MD, FACS, FASCRS, FRCS; Slawomir J. Marecik, MD, FACS, FASCRS