Chen, Yi
Su, Jia En
Qin, Xi Yun
Fan, Zhi Yong
Zhang, Xiao Hai
Yu, Qing
Xia, Zhen Yuan
Zou, Cong Ming
Zhao, Gao Kun
Lin, Zhong Long
Funding for this research was provided by:
Yunnan Science and Technology Innovation Project (2019HB068)
Yunnan Provincial Tobacco Monopoly Bureau China (2016YN10, 2017YN27, 2017YN08)
Article History
Received: 4 October 2019
Accepted: 24 March 2020
First Online: 13 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.