Funding for this research was provided by:
National Natural Science Foundation of China (81870074)
Science and Technology Projects of Quanzhou (2018N007S, Z【2014】0127)
Science and Technology Project of Fujian Education Department (JT180199)
Startup Fund for Scientific Research, Fujian Medical University (2017XQ1102)
Received: 16 April 2019
Revised: 18 August 2019
Accepted: 22 August 2019
First Online: 28 August 2019
Compliance with ethical standards
: This article does not contain any studies with human participants performed by any of the authors.
: The authors declare that they have no conflict of interest.