1 Department of Medical Oncology, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands; and.
2 Departments of Surgery & Nuclear Medicine and Molecular Imaging, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands.
3 Department of Medical Oncology, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands; and e.g.e.de.vries@umcg.nl.