- Correspondence to Dr Vaughan W Rees, Center for Global Tobacco Control, Harvard School of Public Health, Landmark Building, Level 3 East, 677 Huntington Ave, Boston, MA 02115, USA;
- Received 7 July 2011
- Accepted 17 November 2011
- Published in print 1 July 2013.
- Published online 11 June 2013.
- Published first 18 December 2011.
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