Dong, Xiaoyu
Nao, Jianfei http://orcid.org/0000-0002-9668-7032
Article History
Received: 28 August 2018
Accepted: 7 November 2018
First Online: 26 November 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study conformed to Ethical Guidelines for Medical and Health Research Involving Human Subjects endorsed by the Chinese government and was authorized by the Ethics Committee of Shengjing Hospital at China Medical University.