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Article History

Received: 6 July 2020

Accepted: 7 October 2020

First Online: 15 October 2020

Ethics approval and consent to participate

: Participants gave written (at the time of the interview, or via email), and in one case verbal consent before participating in a face-to-face (<i>n</i> = 35) or telephone (<i>n</i> = 2) interview. All procedures were performed in compliance with relevant laws and institutional guidelines and the study protocol was approved by the Human Research Ethics Committee of Curtin University (HRE2017–0144).

: Not applicable.

: BF is a member of the NHMRC Electronic Cigarettes Working Committee (May 2020). She has received consulting payment for e-cigarette policy review for the NSW National Heart Foundation (December 2019). She had travel expenses (flight and registration) reimbursed to attend Oceania Tobacco Control Conference 2017 to present on e-cigarette and cessation. She provided her opinion (unpaid) at Australian Parliament’s Standing Committee on Health, Aged Care and Sport public hearing into the Use and Marketing of Electronic Cigarettes and Personal Vaporisers (September 8, 2017). She led a contract on e-cigarette regulation in Australia for the Commonwealth Department of Health (2016). She had travel expenses reimbursed by National Taiwan University for presenting on e-cigarette regulation (2016). The other authors have no conflicts to declare.