Text and Data Mining valid from 2019-08-05
Received: 6 January 2019
Accepted: 26 June 2019
First Online: 5 August 2019
Ethics approval and consent to participate
: This study was approved by the Regional Ethics Committee of Zhongnan Hospital of Wuhan University and all patients signed informed consents before treatment.
: Not applicable.
: The authors declare that they have no competing interests.