Correction: Activation of Notch Signaling Is Required for Cholangiocarcinoma Progression and Is Enhanced by Inactivation of p53 In Vivo - El Khatib, Mona; Bozko, Przemyslaw; Palagani, Vindhya; Malek, Nisar P.; Wilkens, Ludwig; Plentz, Ruben R. (PLOS ONE, 2018)