1. Family Smoking Prevention and Tobacco Control Act. 21 USC §301 (2009), Pub L No. 111-31, 123 Stat 1776-1858. http://www.gpo.gov.libproxy.usc.edu/fdsys/pkg/PLAW-111publ31/pdf/PLAW-111publ31.pdf (accessed 6 Nov 2014).
2. Directive 2014/40/EU of the European Parliament and of the Council of 3 April 2014 on the approximation of the laws, regulations and administrative provisions of the Member States concerning the manufacture, presentation and sale of tobacco and related products and repealing Directive 2001/37/EC. http://ec.europa.eu/health/tobacco/docs/dir_201440_en.pdf (accessed 25 Apr 2015).
3. Clove cigar sales following the US flavoured cigarette ban;Delnevo;Tob Control,2015
4. Digital detection for tobacco control: online reactions to the United States’ 2009 cigarette excise tax increase;Ayers;Nicotine Tob Res,2014
5. Tobacco commerce on the internet: a threat to comprehensive tobacco control;Cohen;Tob Control,2001