Additional meta-analyses of the two studies excluding endometriosis cases with known minimal (Stage A) endometriosis (rAFS stage I or II disease) (American Society for Reproductive Medicine 1997) in the Australian and Oxford samples implicated a novel locus on 6p22.3 (rs7739264; P = 5.8 × 10−8, OR = 1.21, 95% CI: 1.13–1.30) close to ID4 (subsequently replicated in the Utah study) and an independent intergenic SNP on 9p21.3 ∼55 kb from rs10965235 and 49 kb from the 3′ end of CDKN2BAS (rs1537377; P = 1.1 × 10−8, OR = 1.21). The gene discussed is CDKN2B-AS1; the disease is endometriosis.