SAN FRANCISCO (EGMN) - Extensive lymphadenectomy improves survival for node-negative cervical cancer patients, based on a review of data from more than 5,500 women with stage IA2-IIA cervical cancer.Overall, the greatest benefit was seen in women who had more than 30 nodes removed, but this was seen only in node-negative patients, Dr. Monjri Shah reported at annual meeting of the Society of Gynecologic Oncologists. "Likely this represents a removal of the micrometastases, or [means that clinicians]...