<qa>  What is a complete clinical response to?- Patients must have had a complete clinical response to their front-line surgery and chemotherapy. A complete clinical response is defined as one in which the patient had a normal physical examination, no conclusive evidence of residual tumor by CT of the abdomen and pelvis, a normal chest x-ray, and a serum CA125 level at least 5 UmL but less than 35 UmL as measured in the pretreatment baseline laboratories by the protocol Central Lab. 