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. 2018 Nov 27;2018:3614341. doi: 10.1155/2018/3614341

Figure 2.

Figure 2

The concentration of sHLA-II molecules in blood serum and exhaled breath condensate in COPD patients during the exacerbation and stable period. Data are presented as mean ± SD. Control: healthy nonsmoking volunteers, II: moderate COPD, III: severe COPD, ex: exacerbation, and st: stable phase. ∗p < 0.05 versus healthy nonsmokers, #p < 0.05 versus patients with moderate COPD during the exacerbation, ∨p < 0.05 versus patients with moderate COPD in the stable phase, and ^p < 0.05 versus patients with severe COPD during the exacerbation.