Objective: To detect the aberrant methylation of Ras association domain family 1A (RASSF1A) in the tissue and the serum from ovarian tumor patients;

• 目的：检测卵巢肿瘤组织和血清中Ras相关区域家族1A(Ras association domain family 1A，RASSF1A)基因的异常甲基化；