Wang, Minghui
Zhou, Ruizhi
Zhao, Han
Niu, Lei
Liu, Song
Li, Ying
Liu, Xuejun
Funding for this research was provided by:
Qingdao people’s livelihood science and technology Project (17-3-3-18-nsh)
Article History
Received: 1 August 2019
Accepted: 1 April 2020
First Online: 11 April 2020
Compliance with ethical standards
:
: The authors declare that there are no conflicts of interest.
: The authors declare that they acted in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki.
: Informed consent for publication was obtained from all individual participants included in the study.