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. 2017 May 25;5(5):e68. doi: 10.2196/mhealth.6939

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©Susan Jongstra, Liselotte Willemijn Wijsman, Ricardo Cachucho, Marieke Peternella Hoevenaar-Blom, Simon Pieter Mooijaart, Edo Richard. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 25.05.2017.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mhealth and uhealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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Systematic differences between conventional and smartphone-based cognitive tests in a Bland-Altman-plot. All values are standardized in z-scores.