1. Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc., Frederick, Maryland, USA;
2. Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA;
3. Center for Global Health, U.S. National Cancer Institute, Bethesda, Maryland, USA;
4. Division of General Surgery, Juravinski Hospital, McMaster University, Hamilton, Ontario, Canada;
5. School of Medicine, The Ohio State University, Columbus, Ohio, USA;
6. Department for Management of Noncommunicable Diseases, Disability, Violence and Injury Prevention, World Health Organization, Geneva, Switzerland;
7. Tobacco Control Research Branch, Behavioral Research Program, U.S. National Cancer Institute, Bethesda, Maryland, USA