Sitek, B;Sipos, B;Alkatout, I;Poschmann, G;Stephan, C;Schulenborg, T;Marcus, K;Lüttges, J;Dittert, DD;Baretton, G;Schmiegel, W;Hahn, SA;Klöppel, G;Meyer, HE;Stühler, K.Analysis of the pancreatic tumor progression by a quantitative proteomic approach and immunhistochemical validation..J Proteome Res.2009.8.4.1647-56