FDG-PET for detecting local tumor recurrence of ablated liver metastases: a diagnostic meta-analysis. - Poulou, Loukia S.; Ziakas, Panayiotis D.; Ziogas, Dimitrios C.; Doxani, Chrysoula; Xyla, Vassilia; Vakrinos, George; Voulgarelis, Michael; Thanos, Loukas (Biomarkers, 2012)