Three-Dimensional Conformal Radiotherapy for Hepatocellular Carcinoma in Patients Unfit for Resection, Ablation, or Chemotherapy: A Retrospective Study oleh Vassilis Kouloulias, Eftychia Mosa, John Georgakopoulos, Kalliopi Platoni, Ilias Brountzos, Anna Zygogianni, Christos Antypas, Paraskevas Kosmidis, Kyriaki Mystakidou, Maria Tolia, Ivelina Beli, Athanasios Gouliamos, John Kouvaris, Nikoalos Kelekis