Abstract
Background: Smoking accounts for 8.8% of annual deaths worldwide. It is practiced by about a third of world population aged 15 years or older. About 73% of these smokers are in developing countries with overall prevalence i
Background: Smoking accounts for 8.8% of annual deaths worldwide. It is practiced by about a third of world population aged 15 years or older. About 73% of these smokers are in developing countries with overall prevalence i