Not all cancer cells form tumors, and not all tumors are cancer. But many types of cancer cells do clump together to form tumors and they “communicate” with each other on how to be more resistant to cancer treatment. So, what can be done to stop it? Dr. Lou cancerassassin1 from the University of Minnesota – Twin Cities umntwincities explains his research. #ScienceExplained #CancerResearch #CancerCells