By contrast, Ventetuolo et al. [25], in a cross-sectional analysis of 52 IPF patients, failed to find any association between plasma VEGF concentration and pulmonary arterial pressure, pulmonary vascular resistance, FVC, diffusion capacity of carbon monoxide (DLCO) or functional measures such as the 6 min walk test distance (6MWD) or New York Heart Association (NYHA) class. Here, VEGFA is linked to idiopathic pulmonary fibrosis.