Ultrasound-Guided Laser Interstitial Thermo Therapy for Treatment of Non-Resectable Primary and Secondary Liver Tumours - a Feasibility Study - Wietzke-Braun, P; Ritzel, U; Nolte, W; Leonhardt, U; Armbrust, T; Koc, M; Funke, M; Grabbe, E; Ramadori, G (Ultraschall in der Medizin, 2003)