Considering that there are certain false positives on the 450 K Infinium Methylation BeadChip, we further verified the 8 candidate CpGs (ITGB6:cg21105318, cg07896068, cg18437633; NCALD: cg27637873, cg26782361, cg16265707; LAMA3: cg20937934, cg13270625) used pyrosequencing in advanced high-grade serous ovarian cancer. The gene discussed is ITGB6; the disease is ovarian serous adenocarcinoma.