Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (GK201703031)
Fundamental Research Funds for the Central Universities (GK201701005)
Joint project of Yunnan Provincial Science and Technology Department and Kunming Medical University (2017FE467-030)
High level talent training program in Yunnan (D-201662)
Article History
Received: 3 December 2018
Accepted: 26 July 2019
First Online: 13 August 2019
Compliance with ethical standards
:
: The authors declare that we have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.