1. Department of Head and Neck Imaging, Antoine Lacassagne Cancer Research Center, Nice, France.
2. Department of Radiation Therapy, Antoine Lacassagne Cancer Research Center, Nice, France.
3. Department of Nuclear Medicine, Antoine Lacassagne Cancer Research Center, Nice, France.
4. Department of Oncology Surgery, Centre Hospitalier de Grasse, Chemin de Clavary, Grasse, France.