Funding for this research was provided by:
National Natural Science Foundation of China (81770152, 91642111, 81570143)
Guangzhou Science and Technology Project (201807010004, 201803040017)
Received: 13 January 2020
Accepted: 3 March 2020
First Online: 3 April 2020
Ethics approval and consent to participate
: This study was conducted according to the principals of the Declaration of Helsinki and was approved by the Ethics Committee of Guangzhou First People’s Hospital. All participants were provided with written informed consent.
: Not applicable
: The authors declare that they have no competing interests.