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Authors
Gai, Xiaotong
Jiang, Ning
Lu, Canhua
Xia, Zhenyuan
Qin, Xiyun
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Funding
Funding for this research was provided by:
Yunnan Provincial Tobacco Monopoly Bureau (2017YN08, 2020530000241010)
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Article History
Received: 30 October 2019
Accepted: 1 April 2020
First Online: 26 May 2020
Free to read: This content has been made available to all.
