Xu, Shouxiang
Wang, Boshen
Han, Lei
Pu, Yuepu
Zhu, Baoli
Zhang, Juan
Funding for this research was provided by:
National Natural Science Foundation of China (81573120)
Article History
Received: 21 July 2020
Accepted: 8 December 2020
First Online: 7 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: In abiding with the ethical requirements, the study conformed to the Declaration of Helsinki, and was nominated to be exempted from institutional ethical review by the Research Ethics Board of Jiangsu Provincial CDC. Official permission was taken from each respondent for this study and informed consent was obtained from all participants.
: Consent given by all contributing authors.
: The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.