Received: 13 September 2021
Accepted: 15 March 2022
First Online: 6 April 2022
: The Boston University Medical Campus Institutional Review Board approved the project. All procedures performed in studies involving human participants were in accordance with ethical standards of the Institutional Review Board. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: HK serves as Section Editor for the Tobacco Dependence Treatment section for UpToDate and reports receiving royalties from UpToDate. All consultant positions are outside the submitted work. No other financial disclosures were reported by the authors of this paper.