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. 2022 Aug 9;10(3):e35202. doi: 10.2196/35202

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©Alaa Abd-alrazaq, Dari Alhuwail, Eiman Al-Jafar, Arfan Ahmed, Farag Shuweihdi, Shuja Mohd Reagu, Mowafa Househ. Originally published in JMIR Serious Games (https://games.jmir.org), 09.08.2022.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR Serious Games, is properly cited. The complete bibliographic information, a link to the original publication on https://games.jmir.org, as well as this copyright and license information must be included.

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Forest plot of 2 studies (4 comparisons) comparing the effect of serious games with that of conventional cognitive activities on verbal memory. RE: random effect; SMD: standardized mean difference [59,61].