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. 2017 Apr 20;12:74. doi: 10.1186/s13023-017-0626-0

Fig. 2.

Fig. 2

Comparison of FEV1 and DLCO between PH vs. non-PH groups. Definition of abbreviations: DLCO: lung diffusing capacity for carbon monoxide; FEV1: forced expiratory volume in the first second; PH: pulmonary hypertension. *p < 0.001. Box plots show the quartiles (box limits), the 10th and 90th percentiles (error bars) and the median (line)