References
- Cutler , D. and Miller , G. 2005 . The role of public health improvements in health advances: the twentieth-century United States . Demography , 42 ( 1 ) : 1 – 22 .
- Novotny , T.E. 2009 . Filtered cigarettes and the case for an environmental policy on cigarette waste . International Journal of Environmental Research and Public Health , 6 : 1 – 15 .