Text and Data Mining valid from 2020-03-11
Received: 9 December 2019
Accepted: 6 March 2020
First Online: 11 March 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology. Written informed consents were obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.