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. 2019 Mar 20;10:254. doi: 10.3389/fneur.2019.00254

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Copyright © 2019 Sharobeam, Cordato, Manning, Cheung, Wenderoth and Cappelen-Smith.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Flow chart for study selection into meta-analysis. (B) Elderly vs. young pooled study data showing poorer 90 day outcome and (C) higher mortality in the elderly group.