Plain packaging of cigarettes and other tobacco products could lower the incidence of smoking says a British study. Experts from the University of Cambridge's Behaviour and Health Research unit estimate that two years after the introduction of generic packaging the number of adult smokers would be reduced by one percentage point in Britian from 21 to 20 percent. Similarly the percentage of children trying to smoke would be lowered by three percentage points from 27 to 24 percent they said the journal BMC Public Health reports. Because Australia the first country to implement plain packaging only did so last December there