title: Fistula treatment: The unresolved challenge.
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Internal Medicine, University Hospital Zurich, Zurich, Switzerland. klisaacs@med.unc.edu
authors.forename: Stephan R
authors.initials: SR
authors.lastname: Vavricka
authors.forename: Gerhard
authors.initials: G
authors.lastname: Rogler