Funding for this research was provided by:
National Key R&D Project of China (2017YFC0907402)
Text and Data Mining valid from 2019-11-01
Received: 21 June 2019
Accepted: 17 October 2019
First Online: 1 November 2019
Compliance with ethical standards
: Ethics approval and consent to participate
: This study did not involve any human or animal data; it was deemed negligible risk research and was exempt from ethical review by the Human Research Ethics Committee of Shengjing Hospital of China Medical University, and thus, no consent was required.
: All authors give their consent for publication.
: The authors declare that they have no competing interests.