It was introduced by the American Society of Clinical Oncology in 1977.
According to the World Health Organization (WHO), half of all tobacco smokers die from smoking-related diseases.
Russia tops the list of the world’s nations with the most smokers. It has 44 million smokers, or nearly 44% of its population.
The government is considering tougher anti-smoking measures, including a ban on tobacco advertising and a ban on smoking in public places.
Voice of Russia, RIA