NCR3 and endometriosis: NKp30 (NCR3) and its ligand BAT3 (BAG6) were significantly upregulated in 6/6 and 4/6 secretory phase datasets from endometriosis patients respectively compared with control patients (1.2–1.7 fold change and 1.4–2.3 fold change respectively, Additional file 2: Table S1).