CLEVELAND, Ohio, June 12 -- Case Western Reserve University issued the following news release: * * * Case Western Reserve University researchers combat deadly cancer with therapeutic vaccines Pancreatic cancer has a five-year survival rate of just 13%, making it the deadliest cancer, according to the American Cancer Society. It typically causes no symptoms until it has already metastasized. Surgery, radiation and chemotherapy can extend survival, but rarely provide a cure. Now, researchers a more PR