@misc{indiciaea67c4f413439, title = {A digital image analysis system for identifying filter vent blocking on ultralight cigarettes.}, author = {Richard J O'Connor and Joseph P Stitt and Lynn T Kozlowski}, year = {2005}, doi = {10.1158/1055-9965.epi-04-0505}, url = {https://pubmed.ncbi.nlm.nih.gov/15734984/}, note = {Source identifier: 15734984} }