From a tiny sample of tissue no larger than a grain of sand, scientists have come within reach of a goal once thought ...

An atrial septal defect is a hole in the wall (septum) that divides the upper chambers of the heart, known as the atria. This opening allows oxygen-rich blood from the left atrium to mix with ...

The Knoxville Chamber is selling nearly 20,000 square feet of office space on Market Square. The economic development group has been exploring the move since last year and has many "strategic ...