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Authors
Hisada, Shohei
Murayama, Taichi
Tsubouchi, Kota
Fujita, Sumio
Yada, Shuntaro
Wakamiya, Shoko
Aramaki, Eiji
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Article History
Received: 10 April 2020
Accepted: 1 October 2020
First Online: 29 October 2020
Competing interests
: The authors have no competing interests. S.F. and K.T. are current employees of Yahoo Japan Corporation who provided the user data to this study. Preprint of this paper is available<sup>25</sup>.
