. 2020 Nov 20;9(11):e23112. doi: 10.2196/23112
©Yun Jin Kim, Linchao Qian, Muhammad Shahzad Aslam. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 20.11.2020.
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Figure 5.
Overview of the nonequivalent control-group pretest–post-test study.