This undated microscope image from USC via the NIH shows pancreatic cancer cells, nuclei in blue, growing as a sphere encased in membranes, red. In a rare triumph for tough-to-beat pancreatic cancer, patients who had surgery lived substantially longer on a four-drug combo than on a standard cancer drug, according to research released on Monday, June 4, 2018. (Min Yu/Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research at USC, USC Norris Comprehensive Cancer Center)