1. Department of Radiology and Nuclear Medicine , University Medicine Mannheim, Medical Faculty Mannheim of the University of Heidelberg , Mannheim , Germany
2. Department of Molecular Medicine and Medical Biotechnologies , University of Naples Federico II , Naples , Italy
3. CEINGE-Biotecnologie Avanzate , Napoli , Italy
4. Department of Pathology , Clinical County Emergency Hospital , Targu-Mures , Romania
5. EMQN CIC , Manchester Science Park , Manchester , UK
6. Department of Chemistry , Analysis of Circulating Tumor Cells Lab, Laboratory of Analytical Chemistry, University of Athens , Athens , Greece
7. Medical Faculty Mannheim of the University of Heidelberg , Institute of Clinical Chemistry, University Hospital Mannheim , Mannheim , Germany