title: How to Improve Diagnostic Accuracy in Suspicious Ampullary Lesions?
authors.affiliation: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors.forename: Woo Hyun
authors.initials: WH
authors.lastname: Paik
authors.affiliation: Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
authors.forename: Jin-Hyeok
authors.initials: JH
authors.lastname: Hwang