Smoking is a risk factor for the four leading causes of death in the United States, yet 48
million Americans—24% of the US adult population—continue to smoke. Approximately
70% of people who smoke visit a physician each year, yet only half report ever being
advised to quit smoking by their physician. Smoking cessation is difficult due to nicotine
addiction and withdrawal symptoms. Expert groups such as the National Cancer Institute
and the Agency for Health Care Policy and Research offer protocols for smoking cessation …