Funding for this research was provided by:
National Health and Family Planning Commission of the People's Republic of China (CN) program (201302007)
Article History
Received: 15 October 2019
Accepted: 11 December 2019
First Online: 26 December 2019
Compliance with ethical standards
:
: This trial was approved by the institutional review board (2017–128) and registered the International Clinical Trial Registry (ChiCTR1800016640).
: Informed consent was obtained from all individual participants included in the study.