Figure 1.

FEV1 and FVC over Time. Post-bronchodilator FEV1 and FVC over time. Data represent group mean values for each year.. Note that participation of the Control subjects in the study was terminated after Year 3 evaluation.

Thomson et al. BMC Pulmonary Medicine 2011 11:8   doi:10.1186/1471-2466-11-8
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