1. Department of Clinical Sciences, Intervention and Technology (CLINTEC), Division of Speech and Language Pathology, Karolinska Institutet, Sweden
2. Department of Otorhinolaryngology, Speech and Language Pathology, Skåne University Hospital, Sweden
3. Department of Clinical Sciences, Lund, Logopedics, Phoniatrics and Audiology, Lund University, Lund, Sweden
4. Emeritus, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
5. Department of Speech and Language Pathology, Karolinska University Hospital, Stockholm, Sweden