Zhang, Jun
Chen, Liang
Sun, Yunyun
He, Wensheng
Article History
Received: 18 September 2018
Accepted: 3 January 2019
First Online: 7 March 2019
Compliance with ethical standards
:
: Jun Zhang, Liang Chen, Yunyun Sun and Wensheng He have no conflict of interest to declare.
: All human studies were in accordance with Declaration of Helsinki, Ethical Principles for Medical Research Involving Human Subjects.
: Informed consents were derived from all participants.