Received: 12 November 2018
Accepted: 23 January 2019
First Online: 29 January 2019
Ethics approval and consent to participate
: The study was approved by the Regional Ethics Committee for Medical and Health Research Ethics in Western Norway (REK vest). Written informed consent was obtained from all patients. In cases where patients suffered severe strokes and were not able to give informed consent, this was obtained from their legally authorized representatives as required by the Regional Ethics Committee for Medical and Health Research Ethics in Western Norway.
: Not applicable.
: The authors declare that they have no competing interests.
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