Hu, Ying http://orcid.org/0000-0002-3904-1649
Wang, Ying
Wen, Shu
Guo, Xiujing
Xu, Liangzhi
Chen, Baohong
Chen, Pengfan
Xu, Xiaoxia
Wang, Yuqiong
Funding for this research was provided by:
National Natural Science Foundation of China (NO. 21507094)
Clinical Research Fund of Sichuan University West China Second University Hospital (NO. KL008)
Article History
Received: 14 December 2018
Accepted: 13 September 2019
First Online: 19 November 2019
Ethics approval and consent to participate
: The study was approved by the Institution Review Board of Chengdu Women and Children’s Central Hospital Ethical approval. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (Chengdu Women and Children’s Central Hospital Ethical) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was obtained before data collection. Personal identifiers were removed before data analysis. Study objectives were clearly explained to all participants; participants were informed of the right to withdraw their participation any time during the interview.
: Not applicable.
: The authors declare that they have no conflicts of interest.