Figure 2 .
Representative analysis DNA of concentration from sputum samples from CTR, COPD and LC subjects. DNA concentration in samples of induced sputum obtained from COPD, LC and CTR subjects. Columns show the median and range values for each data group. * P < 0.0001 respect to control group (CTR), ** p >0,05 respect to COPD group.
Guzmán et al. Diagnostic Pathology 2012 7:87 doi:10.1186/1746-1596-7-87