1Associate Professor of Neurology, Department of Clinical Neuroscience, Umeå University, Umeå, Sweden
2Associate Professor of Biomedical Engineering, Department of Biomedical Engineering and Informatics, Umeå University, Umeå, Sweden
Correspondence to: Jan Malm PhD, Department of Clinical Neuroscience, Umeå University 901 85 Umeå, Sweden; [email protected]
The authors wish to thank Bo Kristensen, Lars Johan Liedholm, and Aina Ågren-Wilsson for helpful discussion and comments on the text of this article. The article was reviewed by Professor Ian Whittle, Edinburgh, UK.
