Halvorsen, Merete
Edeklev, Camilla Sæthre
Fraser-Green, Jorunn
Løvland, Grethe
Vatnehol, Svein Are Sirirud
Gjertsen, Øivind
Nedregaard, Bård
Sletteberg, Ruth
Ringstad, Geir
Eide, Per Kristian http://orcid.org/0000-0001-6881-9280
Funding for this research was provided by:
Dept Neurosurgery, Oslo university hospital
Article History
Received: 18 June 2020
Accepted: 8 August 2020
First Online: 15 August 2020
Compliance with ethical standards
: This research study was approved by the Institutional Review Board (2015/1868), Regional Ethics Committee (2015/96) and the National Medicines Agency (15/04932-7).
: Author Geir Ringstad has received a speaker fee from Bayer AG. The other authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.