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Radiation therapy planning FDG-PET/CT-scan of a patient with an laryngeal squamous cell carcinoma (red arrow) with an intermediate risk lymph node in level 3 right (red arrow) (a + b). Comparison of dose planning conform this study protocol for the control-arm (c) and intervention-arm (d) shows the potential of FDG-PET guided gradient dose prescription with dose reduction to the elective neck in order to better spare organs at risk
