Text and Data Mining valid from 2020-03-17
Received: 27 August 2019
Accepted: 5 February 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: The study was approved by the ethics committee of the 105 Hospital of Chinese People’s Liberation Army.
: Informed consent was obtained from each subject.
: The authors declare that they have no competing interests.