Funding for this research was provided by:
the AppliedBasic Research Foundation of Yunnan province (No.2017FE467(-184) and No. 2017FE468(-251))
the Talent Development Program of The Second Affliated Hospital of Kunming Medical University (No. RCPYXM2017-3-04)
Received: 9 May 2019
Accepted: 26 June 2020
First Online: 6 July 2020
Ethics approval and consent to participate
: This study obtained support from the Ethics Committee of the Second Affiliated Hospital of Kunming Medical University and conformed to related requirements of Declaration of Helsinki. Informed consent was exempted by the ethics committee of the second affiliated hospital of kunming medical university.
: Not applicable.
: The authors declare no conflicts of interest.