Wang, Xiumei
Liu, Youde
Sun, Jing
Gong, Wenjing
Sun, Ping
Kong, Xiangshuo
Yang, Miaomiao
Zhang, Weiwei
Article History
Received: 10 September 2018
Accepted: 15 November 2018
First Online: 26 November 2018
Ethics approval and consent to participate
: The study was reviewed and approved by the Medical Ethics Committee of Jining No. 1 People’s Hospital. Since all specimens used were anonymous, the Medical Ethics Committee exempted patients from the need for informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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