Received: 1 May 2018
Accepted: 14 January 2019
First Online: 31 January 2019
Ethics approval and consent to participate
: The Ethics Committee of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Institutional Review Board, China, reviewed the project and the study was approved on 2 June 2015 (reference number: TJ-C20150602).
: Informed consent includes consent for publication.
: The authors declare they have no competing interests.
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