title: A novel method of endoscopic removal of an impacted ampullary stone using a snare (case report with video).
authors.affiliation: Section of Gastroenterology, Sacramento Veterans Affairs Medical Center, Mather, CA and UC Davis Medical Center, Sacramento, CA, USA.
authors.forename: Yang-Lin
authors.initials: YL
authors.lastname: Pan
authors.forename: Catherine
authors.initials: C
authors.lastname: Ngo
authors.forename: Danny
authors.initials: D
authors.lastname: Yen
authors.forename: Joseph
authors.initials: J
authors.lastname: Leung