|
Resolution: standard / high Figure 3.
Changes in the mean (± SD) cigarette use for each study subgroups throughout the study.
Polosa et al. BMC Public Health 2011 11:786 doi:10.1186/1471-2458-11-786 |
|
Resolution: standard / high Figure 3.
Changes in the mean (± SD) cigarette use for each study subgroups throughout the study.
Polosa et al. BMC Public Health 2011 11:786 doi:10.1186/1471-2458-11-786 |
