Liu, Z.
Funding for this research was provided by:
jingzhou first people's hospital
Article History
Received: 1 October 2017
Accepted: 19 December 2017
First Online: 1 February 2018
Compliance with ethical standards
:
: All authors declare no conflict of interest.
: All human and animal studies have been approved by the appropriate ethics committee and have, therefore, been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
: Informed consent was obtained from all individual participants included in the study.