Or, if you'd like to print out a message you're composing, click the down arrow at the bottom right of the email window, and select Print. Sometimes you may find it handy to print something from your inbox, like concert tickets or directions to a restaurant.
Leukemia is a type of cancer that harms the body's ability to make healthy blood cells. It starts in the bone marrow, the soft center of various bones. This is where new blood cells are made. There are three main types of blood cells:
What is leukemia? Leukemia is cancer that originates in blood-forming tissue. The disease is characterized by the uncontrolled growth of blood cells, usually white blood cells (leukocytes), in the bone marrow. White blood cells are a fundamental component of the body's immune response. The leukemia cells crowd out and replace normal blood and marrow cells.