1. Department of Clinical Science, Speech and Language Pathology, Umeå University, Umeå SE90187, Sweden
2. Department of Clinical Science, Intervention and Technology, Division of Speech and Language Pathology, Karolinska Institutet, Stockholm SE14186, Sweden
3. Institute of Neuroscience and Physiology, Department of Health and Rehabilitation, University of Gothenburg, Gothenburg SE40530, Sweden