1. Department of Phoniatrics ; Medical University Graz; Graz Austria
2. School of Sport and Exercise Sciences ; Liverpool John Moores University; Liverpool United Kingdom
3. Department of Veterinary Clinical Sciences ; Royal Veterinary College; London United Kingdom
4. Center of Biomedical Research ; Medical University Graz; Graz Austria
5. Center of Medical Physics and Biomedical Engineering ; Medical University of Vienna; Vienna Austria