How Does Cancer Start?
Cancer can occur in many areas of the body and behaves differently depending on its type and origin. Cancer consists of more than 100 different diseases, all characterized by the uncontrolled growth and spread of abnormal cells. Cancer is a major health problem in North America, striking an estimated 1.4 million people a year and rising. It strikes men, women and children in every country of the world and it is the second leading cause of death in the United States.
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