polonium in tobacco firms accused of hiding danger 1964 Press Photo Harvard Researchers

1 pack-year is equal to smoking 1 pack per day for 1 year, or 2 packs per day for half a year, and so on, while the pack is containing 20 cigarettes

Excess nitrogen, phosphorus, or potassium accumulates and displaces other essential nutrients

By then, tobacco products brought in 10 per cent of government income

Cube v4: From Performance Report Explorer to Performance Analysis Tool, volume 51 of Procedia Computer Science (Amsterdam: Elsevier), 13431352

The Lucky Strike adverts of 1925, "Reach for Lucky instead of a sweet", one of the first cigarette advert campaigns aimed at women, increased its market share by more than 200%