Bai, Ying http://orcid.org/0000-0002-2706-1167
Text and Data Mining valid from 2020-08-28
Version of Record valid from 2020-08-28
Article History
Received: 24 June 2020
Accepted: 17 August 2020
First Online: 28 August 2020
Competing interests
: The author declares there are no competing interests.