article_snippet: Later on [plain packing] can come.
article_snippet: Aaron Schultz added that it is unclear whether plain packaging is effective. '
article_snippet: Rates of smoking have fallen, but shortly after plain packaging was introduced there was really substantial increase on the tax on cigarettes,' Aaron Schultz said. '
article_snippet: It's not clear if the people who stopped smoking have done smoking because of plain packaging or the price increase.'