Ma, Qun
Li, Zhao
Guo, Xiaofan
Guo, Liang
Yu, Shasha
Yang, Hongmei
Zou, Lu
Zheng, Liqiang
Pan, Guowei
Zhang, Yonghong
Sun, Yingxian http://orcid.org/0000-0001-5783-7694
Funding for this research was provided by:
National Science and Technology Support Program of China (2012BAJ18B02)
Article History
Received: 7 October 2018
Accepted: 6 November 2019
First Online: 29 November 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of China Medical University (Shenyang, China). All procedures were performed in accordance with the ethical standards. Written consent was obtained from all participants after they had been informed of the objectives, benefits, medical items and confidentiality agreement of personal information. Besides, the Ethics Committee has also approved to include the illiterate population. And we obtained the written informed consents from all the participants or the proxies authorized by the project participants themselves.
: Not applicable.
: None.