Activin signaling in microsatellite stable colon cancers is disrupted by a combination of genetic and epigenetic mechanisms. oleh Barbara Jung, Jessica Gomez, Eddy Chau, Jennifer Cabral, Jeffrey K Lee, Aimee Anselm, Przemyslaw Slowik, Deena Ream-Robinson, Karen Messer, Judith Sporn, Sung K Shin, C Richard Boland, Ajay Goel, John M Carethers