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    © 2017 Taiwan Society of Geriatric Emergency & Critical Care Medicine. Published by Elsevier
Taiwan LLC. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/
licenses/by-nc-nd/4.0/).
    Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/