Zhou, Yu
Du, Ling
Tu, Bo
Lai, Qiquan
Du, Xiaonan
Xu, Bo
Zhang, Fan
Zhao, Mingdong
Wan, Ziming
Lai, Jiajie
Funding for this research was provided by:
the National Natural Science Foundation of China (Grant No. 81770876; 81270011; 81472125)
the Shanghai Municipal Health and Family Planning Commission Fund Project (Grant No. 201640057)
Article History
Received: 8 January 2018
Accepted: 30 November 2018
First Online: 27 December 2018
Ethics approval and consent to participate
: The study was approved by the institutional ethics review boards (Jinshan Hospital, Fudan University; the First Affiliated Hospital, Sun Yat-sen University; the First Affiliated Hospital of Chongqing Medical University), and an exemption for informed consent was obtained from these Investigational Ethical Review Boards.
: Not applicable
: The authors declare that they have no competing interests.
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