Text and Data Mining valid from 2019-08-07
Received: 17 January 2019
Accepted: 29 July 2019
First Online: 7 August 2019
Ethics approval and consent to participate
: The study and data use were approved by the Human Research Ethics Committees of Tongren Hospital, Shanghai Jiao Tong University, Shanghai, China.
: Not Applicable.
: The authors declare that they have no competing interests.