Zhao, Zemeng
Guo, Moning
Tan, Peng
Tian, Xue
Zhao, Yuhan
Liu, Lulu
Luo, Lili
Luo, Hui
Wang, Xiaonan
Liu, Xiangtong
Guo, Xiuhua
Luo, Yanxia
Funding for this research was provided by:
the National Natural Science Foundation of China (8177351)
Beijing Municipal Commission of Education (KM201810025008)
Beijing Municipal Education Commission ("Practical Training Plan")
Article History
Received: 1 November 2022
Accepted: 3 August 2023
First Online: 15 August 2023
Declarations
:
: This is an observational study, so no ethical approval is required.
: This is an ecological study which does not involve individual participants, so no informed consent is required.
: This article does not contain any individual person’s data in any form.
: This study does not involve human participants or animals, so informed consent and statement on welfare of animals is not required.
: The authors declare no competing interests.