@misc{indiciaea12ce0e30fea, title = {Individual cigarette usage: self-reported data as a function of respondent-reported data.}, author = {C A McMahan and M L Richards and J P Strong}, doi = {10.1016/0021-9150(76)90008-3}, url = {https://pubmed.ncbi.nlm.nih.gov/1267864/}, note = {Source identifier: 1267864} }