Funding for this research was provided by:
Science and Technology Program for Public Wellbeing of Chengdu (2015-HM01-00224-SF)
Received: 1 August 2019
Accepted: 16 November 2019
First Online: 7 December 2019
Compliance with ethical standards
: The authors declare no potential conflicts of interest.
: Written informed consent was obtained from all the participants. The protocols for human specimen studies were approved by the Ethics Committee of the West China Second University Hospital of Sichuan University, and were conducted in agreement with the principles set forth in the Declaration of Helsinki. All animal protocols were approved by the Animal Care and Use Committee of the West China Second University Hospital of Sichuan University.