. 2020 Aug 19;9(8):e16737. doi: 10.2196/16737
©Chao Zhang, Mohamed Soliman-Hamad, Roxanne Robijns, Niels Verberkmoes, Frank Verstappen, Wijnand A IJsselsteijn. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 19.08.2020.
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Figure 8.
Number of messages sent to and from the patients.