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3. Tobacco Control Legal Consortium. Cigarette graphic warnings and the divided federal courts. 2015. http://publichealthlawcenter.org/sites/default/files/resources/Tobacco-Control-Legal-Consortium-Cigarette-Graphic-Warnings-and-the-Divided-Federal-Courts.pdf. Accessed October 28, 2016.
4. Dennis B . Government quits legal battle over graphic cigarette warnings. Washington Post. 2013. www.washingtonpost.com/national/health-science/government-quits-legal-battle-over-graphic-cigarette-warnings/2013/03/19/23053ccc-90d7-11e2-bdea-e32ad90da239_story.html. Accessed October 28, 2016.
5. Analysis of Legal and Scientific Issues in Court Challenges to Graphic Tobacco Warnings