1. Department of Nuclear Medicine, Theagenion Cancer Hospital, Thessaloniki, Greece.
2. Nuklearmedizinische Klinik und Poliklinik, Klinikum Rechts der Isar der Technischen Universitaet München, München, Germany.
3. Department of Histology and Embryology, Athens Medical School, Athens, Greece.
4. PET Imaging Centre, St Thomas' Hospital, London, UK.
5. PET/CT Department and MicroPET/CT Unit, Center for Experimental Surgery, Clinical and Translational Research, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou St, 115 27 Athens, Greece.