[1] Univ Gothenburg, Sahlgrenska Acad, Inst Neurosci & Physiol, Div Speech & Language Pathol, SE-40530 Gothenburg, Sweden
[2] Univ Gothenburg, Univ Gothenburg Ctr Person Ctr Care GPCC, SE-40530 Gothenburg, Sweden
[3] Univ Gothenburg, Sahlgrenska Acad, Inst Hlth & Care Sci, Box 457, SE-40530 Gothenburg, Sweden
[4] Univ Gothenburg, Sahlgrenska Acad, Div Speech & Language Pathol, Box 452, SE-40530 Gothenburg, Sweden