. 2021 Jul 14;23(7):e29170. doi: 10.2196/29170
©Ya-Ling Chiu, Jying-Nan Wang, Haiyan Yu, Yuan-Teng Hsu. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 14.07.2021.
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Figure 2.
Haodf website screenshot. WOM: word of mouth; WVOL: volume of electronic word of mouth.