Activation of the Notch signaling pathway is involved in the formation of cholangiocellular carcinomas - Zender, S; Nickeleit, I; Geffers, R; Chauhan, S; Kubicka, S; Bektas, H; Plentz, R; Gossler, A; Wilkens, L; Manns, MP; Malek, NP (Zeitschrift für Gastroenterologie, 2010)