1. M. Benka Wallén, PhD, RPT, Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, Alfred Nobels Alle 23, 141 83 Huddinge, Sweden.
2. E. Franzén, PhD, RPT, Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, and Department of Physical Therapy, Karolinska University Hospital, Stockholm, Sweden.
3. H. Nero, MSc, RPT, Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet.
4. M. Hagströmer, PhD, RPT, Department of Neurobiology, Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, and Department of Physical Therapy, Karolinska University Hospital.