The present study included tissue specimens from 126 patients with EOC (mean age, 51.40 years) and tissue specimens from 26 patients with benign ovarian tumors (mean age, 52.15 years). Formalin-fixed and frozen sections of tissue specimens of all cases were obtained from Shanghai First Maternity and Infant Hospital, Tongji University (Shanghai, China). The tissue samples were obtained during surgical resection from January 2009 to December 2014. The major clinical and pathological characteristics of the 152 patients are listed in Table I. Only tissue samples of the central areas of EOC were used, and metastases were excluded. The present study was approved by the Institutional Review Board of the First Maternity and Infant Hospital Affiliated to Tongji University. Written informed consent was obtained from all patients.
Clinical and pathological characteristics of the 152 patients.
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