Funding for this research was provided by:
the Training Program for Medical Reserve Talents of the Health and Family Planning Commission of Yunnan Province (grant no. H-201641)
Text and Data Mining valid from 2019-08-20
Received: 9 April 2019
Accepted: 10 August 2019
First Online: 20 August 2019
Compliance with ethical standards
: The authors declare that they have no competing interests.
: All experimental protocols were approved by the human Ethics Committee of Kunming Medical University. The written informed consent was obtained from all patients.