By looking at certain mutations in the tumor it is possible to rule out certain treatments that are not going to be efficient. (scilifelab.se)
For some of the traits, it's easy to identify evolutionary pressures that could have favored certain mutations. (discovermagazine.com)
But they also raise complicated questions about what to tell families, whether to screen other family members for certain mutations, and what to do if those relatives share them. (science.sciencemag.org)