Implementation of tobacco control policies proves hard to do.
The Lancet
D000395:Air Pollutants, Occupational / Q000009:adverse effects*; D006291:Health Policy / Q000331:legislation & jurisprudence / Q000639:trends; D006801:Humans; D014028:Tobacco Smoke Pollution / Q000331:legislation & jurisprudence / Q000517:prevention & control*; D006113:United Kingdom
D000395:Air Pollutants, Occupational; D014028:Tobacco Smoke Pollution