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Authors
Niu, Yuping
Huang, Sexin
Wang, Zeyu
Xu, Peiwen
Wang, Lijuan
Li, Jie
Gao, Ming
Gao, Xuan
Gao, Yuan https://orcid.org/0000-0002-7644-2994
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Article History
Received: 6 May 2020
Accepted: 13 October 2020
First Online: 21 October 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committees of the Institutional Review Board of Center for Reproductive Medicine of Shandong University and all participants provided written informed consent.
: Written informed consent was obtained from all the participants for the publication of this report and any accompanying images. A copy of the written consent is available for review by the Editor of this journal. All participants were over 18 years of age and had their written informed consent for the publication of clinical details and/or clinical images.
: The authors declare that they have no competing interests.
