KRAS-mutated intrahepatic cholangiocarcinoma shows preferential sensitivity towards PARP-1-based interventions - Mahn, FL; Castven, D; Pereira, SP; Hartmann, M; Fahrer, J; Andersen, JB; Matter, MS; Gaiser, T; Rössler, S; Galle, PR; Marquardt, JU (Zeitschrift für Gastroenterologie, 2020)