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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: J Cyst Fibros. 2020 Jun 13;20(3):492–498. doi: 10.1016/j.jcf.2020.06.002

Figure 2.

Figure 2.

Smoothing Splines of Predicted Values and Corresponding 95% Confidence Interval Limits of Percent Predicted Forced Expiratory Volume in 1 Second (ppFEV1) Over Time in Screened Group and Control Group between age 7 and 26 years old