Tobacco sale ban for US campus shops
One of the world's top universities is taking a smoking ban a step further this week, as Stanford University prohibits the sale of tobacco as well as smoking on campus.
Campus shops at the Californian University will have to end the sale of all tobacco products from 1 March.
Parts of the university already have an outdoor as well as indoor smoking ban.
The university says allowing tobacco sales is "inconsistent" with its work on promoting health.
It means that retail outlets, such as the students' union and a petrol station, will have to stop selling tobacco - including cigarettes, e-cigarettes and chewing tobacco.