Pampel, Persistence of Educational Differences in Smoking, United States 1976-2005, Working Paper, University of Colorado, Boulder (January 2007)
RANTES secretion by gene-modified tumor cells results in loss of tumorigenicity in vivo: role of immune cell subpopulations
Details about their methodology can be found here
ft., these purifiers quietly deliver two air exchanges per hour (based on 8-ft ceilings), maintaining consistently fresh indoor air
Tobacco use is the single most preventable cause of death in the world, responsible for nearly a million deaths in the Americas each year, either through direct consumption or exposure to second-hand smoke, according to the Pan American Health Organisation, so governments around the world are taking action
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