Chinese 'low-tar' cigarettes do not deliver lower levels of nicotine and carcinogens.

A significant inverse (p=0.050) relationship was detected between total NNAL in the smokers' urine and tar rating of the cigarettes ( figure 4 and table 1 ), with the relationship remaining borderline significant (p=0.053) after controlling for daily consumption of cigarettes ( table 1 ).

also in 11,409 other papers