January 28, 2013, 5:43 amSmoking kills nearly half a million people in the U.S. every year. It’s the largest cause of preventable death in the world. Most smokers now realize they are inhaling over 4000 chemical compounds in cigarette smoke and they would love to quit. If your New Year’s resolution is to quit smoking, OHSU’s doctors and scientists can help. THE OHSU smoking cessation program has been successful in helping thousands of people quit smoking.