US Prez who withdrew US troops from Vietnam under the policy of VIetnamization; continued a secret war in Cambodia and Laos, said he had brought peace with honor through the Paris Peace Accords in 1973.
What is cancer? Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the bodyâs normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor.
A tumor is a mass composed of a cluster of such abnormal cells. Most cancers form tumors, but not all tumors are cancerous. Benign, or noncancerous, tumors do not spread to other parts of the body, and do not create new tumors. Malignant, or cancerous, tumors crowd out healthy cells, interfere with body functions, and draw nutrients from body tissues.