Division of Nuclear Medicine, Department of Radiology and Nuclear Medicine, University Hospital of Magdeburg, Magdeburg, Germany - simone.schenke@med.ovgu.de. Department of Nuclear Medicine, University Hospital Essen, Essen, Germany. Clinic for Nuclear Medicine, University Hospital of Jena, Jena, Germany. Institute of Nuclear Medicine Hanau, Hanau, Germany. Division of Nuclear Medicine, Department of Radiology and Nuclear Medicine, University Hospital of Magdeburg, Magdeburg, Germany.