The only report on KIR gene associations with endometriosis published so far in addition to our KIR2DS5 paper (Nowak et al. 2010) is that by Kitawaki et al. (2007), who described decreased frequency of KIR3DS1 and increased frequency of highly inhibitory KIR-HLA combinations. The gene discussed is KIR3DL1; the disease is endometriosis.