Evidence outside the box: Minimally invasive treatment for anal fistula Anal Fistula Prof. Dr. Mustafa Ate Prospective evaluation of a new device for the treatment of anal fistulas Anal Fistula Dr Tamjeed Alam Frontiers Modified Plug Repair with Limited Sphincter Sparing Fistulectomy in the Treatment of Complex Anal Fistulas Successful closure of gastrocutaneous fistulas using the Surgisis^{< sup> anal fistula plug The Annals of The Royal College of Surgeons of England}