Fig. 4From: Serum MMP-9, SP-D, and VEGF levels reflect the severity of connective tissue disease-associated interstitial lung diseasesa The correlation between serum MMP-9 level and FVC; b the correlation between serum SP-D level and DLco; c the correlation between serum SP-D level and semiquantitative HRCT scores; d the correlation between serum VEGF level and semiquantitative HRCT scoresBack to article page