Shannin Desroches fought for a diagnosis after being dismissed. Now she tells PEOPLE that she's been given a 5% chance of ...

The intestinal epithelium is a highly dynamic barrier that regulates digestion, absorption, immune responses, and communication between the gut microbiota and the nervous system.

A blood-based test (Freenome) may provide a new option for colorectal cancer screening in the average-risk US population.