The scent it produces is subtle, and the smoke tends to dissipate quickly
Public health initiatives that provide accessible, evidence-based smoking cessation supportincluding behavioral counseling and pharmacotherapyare essential to reduce tobacco-related stomach cancer incidence
Because of this diversity, although e-cigarettes seem to appear less harmful than tobacco cigarettes, their long term adverse health effects on humans cannot be easily predicted from the currently available data [2, 7]
Data collection process, data items, and effect measures, data synthesis A custom-made data extraction form was developed, which included the following data items: general characteristics of the included studies (author and year, country, funding source, conflicts of interest, study design), population characteristics (sample number, demographics