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Main exposure variable People who had ever smoked 100 cigarettes in their entire life were asked: How old were you when you first started smoking regularly?

The new rules ban the manufacture and sale of cigarettes and hand-rolling tobacco (including papers and filters) with: A filter, paper, package, capsule or other component containing flavourings

Regulations differ by country, so availability often depends on local tobacco laws and market rules

and two times greater risk of dying from cancer of the bladder

Contrary to popular belief, all forms of tobacco smoke including smoke from cigars and tobacco pipes have similar health risks as those of cigarette smoke

A rare cause of perinatal asphyxia: maternal carbon monoxide poisoning