Document is current

Article History

Received: 18 July 2017

Accepted: 9 January 2018

First Online: 25 January 2018

Ethics approval and consent to participate

: The Regional Ethical Committee for Medicine and Health Research Ethics, West Norway approved the study prior to initiation (2013/1765). The study is registered in clinicaltrial.gov (NCT02238652). Patients and their next of kin received both written and verbal information about the study. Written informed consent was obtained from all patients with mental capability to understand the implications of the study. The assessment of capability was done by trained researchers and the patients’ health care providers. In patients lacking the ability to consent, written presumed consent was obtained from his or her legal guardian.

: Not applicable

: The authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.