Zhu, Yuanhang
Ren, Chenchen http://orcid.org/0000-0003-3308-2447
Yang, Li
Zhang, Xiaoan
Liu, Ling
Wang, Zhaoxin
Funding for this research was provided by:
the science and technology department’s major program of Henan, China (161100311100)
the national health and family planning commission in China (201601010)
The education department’s Project of Henan, China (19A320052)
Article History
Received: 31 October 2018
Accepted: 19 March 2019
First Online: 27 March 2019
Ethics approval and consent to participate
: This study was reviewed and approved by the Ethics Committee of The Third Affiliated Hospital of Zhengzhou University. Written informed consent to participate in the study was obtained from each patient.
: Not applicable.
: The authors declare that they have no competing interests.
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