However, this law was not enforced until 1988
Cigarette without filter in card pack with lid
Over time, this can lead to oxidative stress, where unstable molecules (free radicals) damage liver cells, restrict blood flow, and contribute to scarring (cirrhosis)
Cigarette packs, on average, are 19 percent cheaper in Tobacco Nation ($5.48) than in the rest of the U.S
Limitations and strengths Strengths of the commercial literature are that it can provide unique insights into industry attempts to maintain and enhance profitability
The same group plans similar studies in North Carolina, where tobacco restrictions have traditionally been less strict, and in New York City, where they have been more stringent