8. Previous malignant disease: patients are not eligible for the study if actively being treated of inva-sive cancer other than ovarian cancer. Patients with previous malignant disease other than ovarian cancer who are relapse-free and treatment-free for more than three years may enter this study. Pa-tients with previous history of in-situ carcinoma, stage 1A cervical cancer or non-invasive basal cell and squamous cell skin carcinoma can enter this trial.