[1] M&I Fachklin Bad Heilbrunn, Zentrum Schluckstorungen, Abt Neurol & Neuropsychol, D-83670 Bad Heilbrunn, Germany
[2] Univ & Rehabil Kliniken Ulm RKU, Neurol Klin, Ulm, Germany
[3] Kolner Dysphagiezentrum, Cologne, Germany
[4] Univ Klinikum Munster, Neurol Klin, Munster, Germany
[5] Univ & Rehabil Kliniken Ulm RKU, Abt Logopadie, Ulm, Germany
[6] SRH Klinikum Karlsbad Langensteinbach, Abt Logopadie, Karlsbad, Germany
[7] SRH Klinikum Karlsbad Langensteinbach, Karlsbader Schluckzentrum, Karlsbad, Germany