Luminal B breast cancer is positive for estrogen and sometimes progesterone receptors. It may be positive or negative for epidermal growth factor receptor 2 and has high levels of the protein Ki-67.

B cells are a subtype of lymphocyte. They form part of the adaptive immune response and mediate humoral immunity. B cells can produce high-affinity antibodies and generate immunological memory ...

For the 12th straight year, the Bruins have granted "Behind The B" cameras unprecedented access into the team's locker room, executive boardroom, and players' homes that will give fans a behind ...

Musheer, Sarfaraz, Rinku, and Reddy all fell cheaply to Kamboj and let go of the advantage India B had going into day three ...

Molson Coors Beverage Co. Cl A 0.00% $11.26B Molson Coors Beverage Co. Cl B-0.12% $11.62B ...

After hours: October 21 at 5:41 PM EDT Loading Chart for BF-B ...

Olivia B. Waxman is a staff writer at TIME. She covers history and education. More From TIME ...

A viral hepatitis infection is an inflammation of the liver, resulting in liver damage. There are different types of hepatitis viruses, including hepatitis B (HBV) and hepatitis C (HCV), which are ...