Löfgren, David http://orcid.org/0000-0001-9858-6684
Valachis, Antonios http://orcid.org/0000-0001-6059-0194
Olivecrona, Magnus http://orcid.org/0000-0001-8457-4711
Funding for this research was provided by:
Regionala Forskningsrådet Uppsala/Örebro (OLL-591961, OLL-869421)
Region Örebro län (ALF funding, ALF funding, ALF funding)
Article History
Received: 9 April 2022
Accepted: 27 July 2022
First Online: 18 August 2022
Declarations
:
: This study was approved by the Regional Ethical Review Board, Uppsala, Sweden (Diary number 2016/014). All procedures performed were in accordance with the approval and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: In accordance with Swedish legislation and regulations regarding patient consent for participation in a national quality registry, before undergoing surgery, patients were given written information about SBTR including the choice to opt out from registration in SBTR or for their data to be removed from the registry at any time.
: David Löfgren and Magnus Olivecrona are members of the Swedish CNS Tumour Registry control group. Magnus Olivecrona is a previous member of the Swedish Brain Tumour Registry (SBTR) control group. Antonios Valachis reports no conflict of interest.