Bai, Yuming
Gao, Shijun
Liu, Ying http://orcid.org/0000-0002-0767-8506
Jin, Shengli
Zhang, Haisen
Su, Ke
Article History
Received: 31 July 2018
Accepted: 13 December 2018
First Online: 18 January 2019
Ethics approval and consent to participate
: This study is followed with all criteria adhered to the Declaration of Helsinki, and has been permitted by the Ethics and Research Committee of the Central Hospital of Cangzhou City, China. All participants signed an informed consent letter.
: Not Applicable.
: The authors declare that they have no competing interests.
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