Zhong, Yan
Zhu, Fufan
Ding, Yiling
Article History
First Online: 14 March 2020
Ethics approval and consent to participate
: This project was approved by the Human Research Ethics Committees of the Second Xiangya Hospital, in Changsha, China (No. 2016-S080; 29 September 2016). All human participants gave written informed consent before the study began.
: Not applicable.
: The authors declare that they have no competing interests.