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. 2016 May 23;25(5):477–482. doi: 10.1159/000446987

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Copyright © 2016 by S. Karger AG, Basel

This is an Open Access article licensed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported license (CC BY-NC) (www.karger.com/OA-license), applicable to the online version of the article only. Distribution permitted for non-commercial purposes only.

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Fig. 4 — Overall improvement assessment.