Text and Data Mining valid from 2019-11-14
Received: 5 July 2019
Accepted: 31 October 2019
First Online: 14 November 2019
Ethics approval and consent to participate
: This study was approved by the ethics committee of Jiangxi Provincial People’s Hospital. All study methods were in accordance with the Declaration of Helsinki. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.