Therefore, when OCA group was excluded, and only TBP group and non-OCA group were compared, it turned out that no differences were found in serum CA 125, ascites CA 125 or ascites CEA (P for serum CA 125 0.126, serum CEA 0.015, ascites CA 125 0.519 and ascites CEA 0.132). This evidence concerns the gene CEACAM5 and oculocutaneous albinism.