Article History
Received: 10 April 2018
Accepted: 22 September 2018
First Online: 1 October 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Ethics Committee of Shenzhen People’s Hospital and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Additional informed consent was obtained from all individual participants for whom identifying information is included in this article.