1. C. Rastad, PT, PhD, Department of Neuroscience, Uppsala University, Husargatan 3, Uppsala 75237 Sweden, and Center for Clinical Research (CKF), Nissers väg 3, Falun 79182, Sweden.
2. C. Martin, PT, PhD, Department of Neuroscience, Uppsala University.
3. P. Åsenlöf, PT, PhD, Department of Neuroscience, Uppsala University.