Article History
Received: 3 November 2018
Accepted: 23 May 2019
First Online: 7 June 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology. All participants provided written informed consent before participating in the study.
: Not applicable.
: The authors declare that they have no competing interests.