1. Smoking and the First Amendment;K Outterson;N Engl J Med,2011
2. WHO (n.d.) Parties to the WHO Framework Convention on Tobacco Control. WHO. Available: http://www.who.int/fctc/signatories_parties/en/index.html. Accessed 13 January 2013.
3. The Minamata Convention on Mercury: Attempting to address the global controversy of dental amalgam use and mercury waste disposal;TK Mackey;Sci Total Environ,2013
4. WHO Framework Convention on Tobacco Control: a key milestone;H Nikogosian;Bull World Health Organ,2010
5. Tobacco. World Health Organization. Available: http://www.who.int/mediacentre/factsheets/fs339/en/. Accessed 13 January 2013.