For example, Liu et al. have recently shown that the single-nucleotide polymorphisms in the TNFSF4 and FAM167A-BLK genes may be involved in asthma and AR gene (29) and Zhao et al. associated the PBX2 gene in the 6p21.3 asthma susceptibility locus with an increased risk for both AR and asthma (30). The gene discussed is BLK; the disease is asthma.