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. 2017 Nov;9(11):4538–4549. doi: 10.21037/jtd.2017.10.110

Figure 5.

Figure 5

Predicted values and LLNs in males and females for FVC, FEV1, FEV1/FVC%, PEF, respectively. Graphs were generated using mean height for age in the present study. LLNs, lower limits of normal; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; PEF, peak expiratory flow.