When quitters are winners.  Breaking the addiction to cigarettes is tough, but the payoff is worth it.  [electronic resource] 

 -  Harvard heart letter : from Harvard Medical School  Aug 2008 
 - 4-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1051-5313 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Smoking Cessation--methods<br/>Tobacco Use Disorder--physiopathology