1. Université de Picardie Jules Verne and Amiens University Hospital, Amiens, France;
2. Department of Physics, University of Helsinki, Helsinki, Finland;
3. European Synchrotron Radiation Facility, Grenoble, France;
4. Geneva Children's Hospital, University Hospitals of Geneva, and Geneva University, Geneva, Switzerland;
5. Department of Pathology, Amiens University Hospital, Amiens, France;
6. Department of Medical Physics and Informatics, University of Szeged, Szeged, Hungary; and
7. Department of Clinical Physiology and Nuclear Medicine, Helsinki University Central Hospital, Helsinki, Finland