A biopsy is a sample of tissue taken from the body in order to examine it more closely. A doctor should recommend a biopsy when an initial test suggests an area of tissue in the body isn't normal.

You might get just one chemotherapy drug or a combination of them. Using a combination can make your treatment more effective because each drug attacks cancer in a different way. It also lowers the ...

Although much is known about the molecular components of cellular signaling pathways, very little is known about how these multicomponent biochemical machineries process complex extracellular signals ...