About the Authors

Ahmad El-Hellani

Roles Conceptualization, Funding acquisition, Investigation, Project administration, Supervision, Writing – original draft, Writing – review & editing

elhellani.1@osu.edu

Affiliations Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, Ohio, United States of America, Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, United States of America

Elyana Hanna

Roles Methodology, Project administration, Writing – review & editing

Affiliations Department of Mechanical Engineering, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut, Lebanon, Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America

Mehak Sharma

Roles Methodology, Project administration, Writing – review & editing

Affiliation Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America

Reagan Blohowiak

Roles Methodology, Project administration, Writing – review & editing

Affiliation Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America

Phillip Joseph

Roles Methodology, Project administration, Writing – review & editing

Affiliation Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America

Tore Eid

Roles Methodology, Project administration, Writing – review & editing

Affiliation Department of Laboratory Medicine, Yale School of Medicine, Washington, DC, United States of America

Haleh Nadim

Roles Methodology, Writing – review & editing

Affiliation Department of Laboratory Medicine, Yale School of Medicine, Washington, DC, United States of America

Rachel El-Hage

Roles Methodology, Project administration, Writing – review & editing

Affiliations Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America, Department of Chemistry, Faculty of Arts and Sciences, American University of Beirut, Beirut, Lebanon

Rola Salman

Roles Methodology, Project administration, Writing – review & editing

Affiliations Department of Mechanical Engineering, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut, Lebanon, Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America

Nareg Karaoghlanian

Roles Methodology, Software, Writing – review & editing

Affiliations Department of Mechanical Engineering, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut, Lebanon, Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America

Ayomipo Adeniji

Roles Methodology, Writing – review & editing

Affiliations Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, Ohio, United States of America, Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, United States of America

Sally Salam

Roles Methodology, Project administration, Writing – review & editing

Affiliations Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America, Department of Chemistry, Faculty of Arts and Sciences, American University of Beirut, Beirut, Lebanon

Farid Talih

Roles Investigation, Writing – review & editing

Affiliation Clinical Psychiatry, Faculty of Medicine, American University of Beirut, Beirut, Lebanon

Martine Elbejjani

Roles Data curation, Formal analysis, Software, Writing – review & editing

Affiliation Clinical Research Institute & Department of Internal Medicine, Faculty of Medicine, American University of Beirut, Beirut, Lebanon

Alison Breland

Roles Conceptualization, Funding acquisition, Investigation, Writing – review & editing

Affiliations Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America, Department of Psychology, Virginia Commonwealth University, Richmond, Virginia, United States of America

Thomas Eissenberg

Roles Conceptualization, Funding acquisition, Investigation, Writing – review & editing

Affiliations Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America, Department of Psychology, Virginia Commonwealth University, Richmond, Virginia, United States of America

Alan Shihadeh

Roles Conceptualization, Funding acquisition, Investigation, Writing – review & editing

Affiliations Department of Mechanical Engineering, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut, Lebanon, Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America

Stephen R. Baldassarri

Roles Conceptualization, Funding acquisition, Investigation, Project administration, Supervision, Writing – original draft, Writing – review & editing

Affiliations Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America, Yale Center for the Study of Tobacco Product Use and Addiction, Yale University, New Haven, Connecticut, United States of America, Program in Addiction Medicine, Yale School of Medicine, Washington, DC, United States of America

Soha Talih

Roles Conceptualization, Funding acquisition, Investigation, Project administration, Supervision, Writing – original draft, Writing – review & editing

Affiliations Department of Mechanical Engineering, Maroun Semaan Faculty of Engineering and Architecture, American University of Beirut, Beirut, Lebanon, Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, Virginia, United States of America

Competing Interests

AS and TEissenberg are paid consultants in litigation against the tobacco and EC industry and are named on a patent for a device that measures the puffing behavior of EC users and another patent application for a smoking cessation intervention. TEissenberg is also named on a patent application for a smartphone app that determines EC device and liquid characteristics. All other authors declare no conflict of interest. This does not alter our adherence to PLOS ONE policies on sharing data and materials.