Text and Data Mining valid from 2019-08-13
Received: 4 July 2019
Accepted: 29 July 2019
First Online: 13 August 2019
Ethics approval and consent to participate
: This study was performed in accordance with the Declaration of Helsinki and was approved by the Ethics Committee of Southwest Hospital, Third Military Medical University (Army Medical University).
: All included patients provided informed consent.
: The authors declare that they have no competing interests.