Affiliation China National Tobacco Corporation and Hongyun Honghe Tobacco (Group) Co., Ltd. was erroneously omitted for author SZ and JG. The Conflict of interest statement has been corrected to
Conflict of interest: SZ was employed by the Staff Development Institute of China National Tobacco Corporation. YiL was employed by Danzhou City Branch of Hainan Province Tobacco Company, YunL was employed by Deyang City Branch of Sichuan Province Tobacco Company, and JG was employed by Hongyun Honghe Tobacco (Group) Co., Ltd.
The remaining author(s) declared that this work was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
2nd Affiliation
Staff Development Institute of China National Tobacco Corporation, Zhengzhou, China was erroneously given as College of Staff Education, China Tobacco Corporation, Zhengzhou, China
6th Affiliation
Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming, China was erroneously given as Honghe City Branch of Yunnan Province Tobacco Company, Kunming, Yunnan, China
The original version of this article has been updated.
Footnotes
Approved by: Frontiers Editorial Office, Frontiers Media SA, Switzerland
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.