1. Lehrstuhl für Biologische Chemie, Technische Universität München, Freising, Germany.
2. Klinikum rechts der Isar, Department of Nuclear Medicine, Technical University Munich, Munich, Germany.
3. Pathology Research Laboratory, Sant'Andrea Hospital, University Sapienza, Rome, Italy.
4. Pathology Research Laboratory, Cancer Center Karolinska, Karolinska Hospital, Stockholm, Sweden.