1 Division of Medical Oncology, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, OH, USA; Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43214, USA. Electronic address: keller-hamilton.1@osu.edu.
2 Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43214, USA; Division of Epidemiology, The Ohio State University College of Public Health, Columbus, OH, USA.