EpCAM-positive circulating tumor cells and serum AFP levels predict outcome after curative resection of hepatocellular carcinoma oleh Lorenz Kocheise, Martin Schoenlein, Berit Behrends, Vincent Joerg, Christian Casar, Thorben W. Fruendt, Thomas Renné, Asmus Heumann, Jun Li, Samuel Huber, Ansgar W. Lohse, Klaus Pantel, Sabine Riethdorf, Henning Wege, Kornelius Schulze, Johann von Felden