[1] Univ Antwerp, Fac Med, Univ Antwerp Hosp, Univ Dept ORL, B-2020 Antwerp, Belgium
[2] Katholieke Univ Leuven, Dept Neurosci, ExpORL, Louvain, Belgium
[3] UZ Leuven, Dept ORL, Leuven, Belgium
[4] Univ Ghent, Dept ORL, B-9000 Ghent, Belgium
[5] AZ St Augustinus, ENT Dept, Antwerp, Belgium
[6] Clin St Luc UCL, Serv ORL, Brussels, Belgium
[7] CORA CI, Hasselt, Belgium