1. The Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine , Lebanon, NH, USA
2. Department of Medicine, Dartmouth Hitchcock Medical Center , Lebanon, NH, USA
3. Center for Tobacco Studies, Rutgers University , New Brunswick, NJ, USA
4. Geisel School of Medicine , Lebanon, NH, USA
5. Department of Biomedical Data Science, Geisel School of Medicine , Lebanon, NH, USA
6. Department of Surgery, Dartmouth Hitchcock Medical Center , Lebanon, NH, USA