- History of a prior malignancy with the exception of cervical intraepithelial neoplasia; non-melanoma skin cancer; adequately treated localized prostate carcinoma with prostate specific antigen (PSA) < 1.0; or who has undergone potentially curative therapy with no evidence of that disease for five years, and/or who is deemed at low risk for recurrence (< 30% probability) by his/her treating physician