Text and Data Mining valid from 2018-05-16
Received: 16 May 2017
Accepted: 25 April 2018
First Online: 16 May 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the Ethical Review Committee (ERC) at Tongji Medical College of the Huazhong University of Science and Technology.
: All authors have provided their consent for publication.
: The authors declare that they have no competing interests.