Introduction
Tobacco smoking is considered to be a major health issues around the globe and is also claimed to be the most preventable cause of death in current time (Borgan, et al. 2014). Tobacco smoking is associated with 6 million deaths per year around the globe and is considered as one of the biggest public health issues by the World Health Organization (WHO) (Behbehani, et al. 2014). Based on current evidence and a report published by the WHO, 5 out of 6 million deaths are associated with direct tobacco smoking while nearly 600,000 deaths are due to non-smokers exposed ...
