[1] Tech Univ Dresden, Dept Otorhinolaryngol, Interdisciplinary Ctr Smell & Taste, Dresden, Germany
[2] Tech Univ Dresden, Dept Otorhinolaryngol, Smell & Taste Clin, Dresden, Germany
[3] Tech Univ Dresden, Pain Ctr, Univ Klinikum Carl Gustav Carus, Dresden, Germany