Two years after she underwent a mastectomy and chemotherapy, Barbara Bradfield's aggressive breast cancer had recurred and spread to her lungs. The outlook was grim. Then she took part in Genentech's clinical trials for a new drug. Five years later she remains cancer-free.Her-2 is the biography of Herceptin, the drug that provoked dramatic responses in Barbara Bradfield and other women in the trials and that offers promise for hundreds of thousands of breast cancer patients. Unlike...