Funding for this research was provided by:
Chongqing Science and Technology Commission (cstc2017jcyjAX0447)
Article History
Received: 23 September 2019
Accepted: 25 July 2020
First Online: 1 August 2020
Compliance with ethical standards
:
: The authors Bowen Li, Hongxue Fu, Tingting Liu, and Mei Xu all declared that there was no conflict of interest.
: All procedures performed in studies involving human participants were following ethical standard and Institutional Review Board, as well as the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.