Tan, Qing-Qing http://orcid.org/0000-0002-3858-0528
Wen, Bai-Wei
Liao, Xuan
Tian, Jing
Lin, Jia
Lan, Chang-Jun http://orcid.org/0000-0002-1040-9622
Funding for this research was provided by:
Sichuan Health and Family Planning Commission (18ZD022)
Article History
Received: 12 June 2019
Revised: 12 August 2019
Accepted: 29 September 2019
First Online: 23 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Institutional Review Board of Affiliated Hospital of North Sichuan Medical College and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.