 - Diagnosed with a malignancy in the past two years. However, subjects with non-melanoma skin cancers, melanoma in situ, localized cancer of the prostate with current PSA of 0.1 ngmL, treated thyroid cancer or cervical carcinoma in situ or ductallobular carcinoma in situ of the breast within the past two years may enroll as long as there is no current evidence of disease. 