Major Smoking<span>-Related </span>Diseases<span>. </span>Cigarette-smoking<span> leads to an </span>increased<span> risk of</span>heart disease<span>, the leading cause of death in the United States (USDHHS, 2000); and the surgeon general's 1983 report (USDHHS, 1983) concluded that </span>cigarette-smoking<span> is the most important modifiable risk factor for </span>coronary heart disease<span>.</span>
