Yang, Yuxin
Funding for this research was provided by:
innovative research team of Xi’an International University (No. XAIU-KT201805-2)
Article History
Received: 21 November 2018
Revised: 3 January 2019
Accepted: 10 January 2019
First Online: 30 January 2019
Change Date: 7 November 2022
Change Type: Clarification
Change Details: This article was retracted on 7 November 2022.
Free to read: This content has been made available to all.