Persistent hyperinsulinemic hypoglycemia in 15 adults with diffuse nesidioblastosis: diagnostic criteria, incidence, and characterization of beta-cell changes - Anlauf, M; Wieben, D; Perren, A; Sipos, B; Komminoth, P; Raffel, A; Kruse, M L; Fottner, C; Knoefel, W T; Mönig, H; Heitz, P U; Klöppel, G (Am J Surg Pathol, 2005)