tariffs on tobacco Walmart raises age for sales; China could hit US shoppers, and more top news Now Trump's tariffs hit America's

Cellulose is derived from the cell walls of plants such as cotton, wood, and hemp

Nicotine is especially harmful to adolescents, as it impacts brain development

Merriam-Webster, Incorporated

The primary health concerns presented in the advertisements in the first half of the twentieth century revolved around non-fatal conditions like coughing and throat irritation

Funding This research was supported by the Korea Medical Device Development Fund grant funded by the Korea government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health & Welfare, the Ministry of Food and Drug Safety) (Project Number: KMDF_PR_20200901_0185, 9991007416)