title: Glucagon expression in cystic pancreatic neuroendocrine neoplasms: an immunohistochemical analysis.
authors.affiliation: Department of Pathology, University of Kiel, Kiel, Germany.
authors.forename: Björn
authors.initials: B
authors.lastname: Konukiewitz
authors.forename: Tetsuji
authors.initials: T
authors.lastname: Enosawa
authors.forename: Günter
authors.initials: G
authors.lastname: Klöppel