Figure 1
From: Cytokine gene polymorphisms and serum cytokine levels in patients with idiopathic pulmonary fibrosis
Serum levels of interleukin (IL)-6, IL-10, transforming growth factor-beta 1 (TGF-β 1 ), and tumor necrosis factor alpha (TNF-α) in idiopathic pulmonary fibrosis (IPF) patients (n = 38) and healthy controls (n = 36). Each circle represents one individual, and transverse lines indicate median values. P-values were determined using the nonparametric Mann–Whitney U test.