American cigarettes are more harmful.

Scientists from many countries has established that cigarettes that are produced by USA are more harmful for health.It contains more than allowable level of toxic chemicals and carcinogens.
This information is based on research that was made by scientists from Australia, United Kingdom, Canada and America. They have examined 126 smokers that smoke 15 cigarettes per day for the last 1 year. The result was amazing: cigarettes produced in America is more than three time dangerously.