Behavioral filter vent blocking on the first cigarette of the day predicts which smokers of light cigarettes will increase smoke exposure from blocked vents
Experimental and Clinical Psychopharmacology (2009) - Comment
pubmed: 19968405  doi: 10.1037/a0017649  issn: 1936-2293  issn: 1064-1297 

Andrew A. Strasser, Kathy Z. Tang, Paul M. Sanborn, Jon Y. Zhou, Lynn T. Kozlowski