Developing Molecular Biomarkers for Cancer

For decades, biologists have sought to develop noninvasive tests for detecting cancer. In a Perspective, [Ransohoff][1] discusses new work that could be applied to developing a noninvasive test for detecting colorectal cancer ([ Cui et al .][2]). [1]: http://www.sciencemag.org/cgi/content/full/299/5613/1679 [2]: http://www.sciencemag.org/cgi/content/short/299/5613/1753