[1] Ctr Antoine Lacassagne, Inst Univ Face & Cou, Dept Chirurg, F-06189 Nice, France
[2] Ctr Antoine Lacassagne, Inst Univ Face & Cou, Dept Med Stat, F-06189 Nice, France
[3] Ctr Antoine Lacassagne, Inst Univ Face & Cou, Dept Med Oncol, F-06189 Nice, France
[4] Ctr Antoine Lacassagne, Inst Univ Face & Cou, Dept Radiotherapie, F-06189 Nice, France
[5] Ctr Antoine Lacassagne, Inst Univ Face & Cou, Dept Anesthesie & Reanimat, F-06189 Nice, France
[6] Ctr Antoine Lacassagne, Inst Univ Face & Cou, Dept Anat Pathol, F-06189 Nice, France