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. 2015 Oct 10;126:137–149. doi: 10.1007/s11060-015-1949-0

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© The Author(s) 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Flow diagram illustrating questions presented to practicing neurosurgeons and trainees in Canada. Survey conducted online using an online anonymous password protected questionnaire (SurveyMonkey; www.surveymonkey.com)