Figure 2.

Degree of disclosure by lung function. Pulmonary function categories reflect those defined by the CF Foundation[1]; severe = FEV1 ≤40% predicted; moderate = FEV1 41-70% predicted; mild = FEV1 71-90% predicted; normal = FEV1 > 90% predicted; FEV1 = forced expiratory volume in 1 second

Modi et al. BMC Pulmonary Medicine 2010 10:46   doi:10.1186/1471-2466-10-46
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