Funding for this research was provided by:
Posthumus Meyes Fund
Stichting Achmea Gezondheidszorg
Received: 21 June 2019
Accepted: 25 August 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: Approval of the Medical Ethics Committee and the Scientific Research Committee from the Neurosurgery Department of Leiden University Medical Center have been granted on March 25, 2019. The submitted protocol was reviewed under reference number P18.217 by the MEC. Approval of the Board of Directors of the Spaarne Gasthuis has been granted. Written consent will be obtained from all participants. Significant protocol modifications will have to be approved by the MEC and communicated to trial participants and through the trial registry.
: Not applicable.
: The authors declare that they have no competing interests.