1. Department of Pediatrics The University of Oklahoma Health Sciences Center Oklahoma City OK USA
2. Stephenson Cancer Center Oklahoma Tobacco Research Center Oklahoma City OK USA
3. Department of Family and Preventive Medicine The University of Oklahoma Health Sciences Center Oklahoma City OK USA
4. Harvard T. H. Chan School of Public Health, Dana‐Farber Cancer Institute Harvard University Cambridge MA USA
5. Division of Medical Oncology, Department of Internal Medicine The Ohio State University Wexner Medical Center Columbus OH USA
6. Center for Tobacco Research The Ohio State University Comprehensive Cancer Center Columbus OH USA