|
Resolution: standard / high Figure 7.
Frequency distribution of all smokers with respect to CEA levels.
Sajid et al. Harm Reduction Journal 2008 5:19 doi:10.1186/1477-7517-5-19 |
|
Resolution: standard / high Figure 7.
Frequency distribution of all smokers with respect to CEA levels.
Sajid et al. Harm Reduction Journal 2008 5:19 doi:10.1186/1477-7517-5-19 |
