,
Christopher, Edward
Poon, Michael T. C.
Glancz, Laurence J.
Hutchinson, Peter J.
Kolias, Angelos G.
Brennan, Paul M.
Funding for this research was provided by:
National Institute for Health Research Research Professorship
National Institute for Health Research Cambridge Biomedical Research Centre
European Union Seventh Framework Program (602150)
Royal College of Surgeons of England
University of Cambridge School of Clinical Medicine Clinical Lectureship
Article History
Received: 10 February 2018
Revised: 28 March 2018
Accepted: 9 April 2018
First Online: 21 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: Ethical approval is not applicable as this study is the analysis of patient subgroups from a previously published study. The Academic Committee of the Society of British Neurological Surgeons (SBNS) approved the protocol of the original study. The original study was supported by the SBNS and formed part of the Neurosurgical National Audit Program.