Comparison of imaging for cervical lymph nodes after primary radio(chemo)therapy of advanced HNSCC – preliminary findings of the HN-Onkoimage-1 trial - Künzel, Julian; Lang, Tamara; Bozzato, Alessandro; Miederer, Matthias; Grosse, Jirka; Rennert, Janine; Peres, Franz-Xaver; Hagemann, Jan (Ultraschall in der Medizin - European Journal of Ultrasound, 2022)