Xu, Chi
Kuo, Feng-Chih
Kheir, Matthew
Li, Xin
Chai, Wei
Chen, Ji-Ying
Article History
Received: 19 November 2018
Accepted: 23 May 2019
First Online: 3 June 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the General Hospital of People’s Liberation Army and in accordance with the 1964 Declaration of Helsinki. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.