Carbon ion therapy (C12) for high-grade malignant salivary gland tumors (MSGTs) of the head and neck: do non-ACCs profit from dose escalation? - Jensen, Alexandra; Uhl, Matthias; Chaudhri, Naved Sarwar; Federspil, Philippe A.; Freier, Kolja; Krauß, Jürgen; Debus, Jürgen (Radiation oncology, 2016)