CXCR3 chemokine ligands are elevated in patients with cGVHD. (A-B) Luminex analysis of serum levels of the CXCR3 chemokine ligands CXCL9, CXCL10, and CXCL11 in control SCT patients (n = 18), in SCT patients with skin disease only (n = 8) or with no skin involvement (n = 20; A) and in HD controls (n = 6), SCT controls (n = 18), and SCT patients with skin only GVHD (n = 8; B). Data are illustrated as log10 serum concentration in pg/mL, illustrating mean expression levels plus SEM. Data were confirmed as log normally distributed by pp-plot. *P < .05, **P < .005, and ***P < .0005 by independent t test.