Women who have undergone in vitro fertilization appear to have a twofold risk of ovarian malignancies later in life, compared with women with fertility problems who never used IVF.However, the risk of invasive ovarian cancer was not significantly increased in IVF-treated women until 15 years after IVF treatment, the results of the study found.Results from a large Dutch cohort study of 25,152 women using linked medical records to identify women who had been seen for infertility and/or treated with...