chuck close self portrait cigarette Close's Self-Portraits Liz Phillips - Late Bloomer

In many countries cigarettes are often sold individually without packaging in these countries, warnings directly on cigarettes have the potential for even greater impact

Repeated exposure to tobacco smoke can increase sensitivity over time

ANNC 1: Yes, thats what takes the joy out of smoking and when that happens to you, its time to change to Phillip Morris

Adjustment for other factors Generally our analyses showed that adjustment for age and other factors had very little effect on the meta-analysis estimates of smoking-related RR, whether one considered the total number of adjustment factors, or the effect of specific factors