Each year, nearly 27,000 adults and more than 2,000 children in the United States learn that they have a disease called leukemia. Leukemia is a type of cancer. Cancer is a group of more than 100 diseases that have two important characteristics in common. One of those is that certain cells in the body become abnormal. The other characteristic is that the body keeps producing large numbers of these abnormal cells. Leukemia is cancer of the blood cells. …showed first 75 words of 2293 total…

…showed last 75 words of 2293 total…accelerate our progress toward the control of cancer. Finally, the twenty-first century will be an era of enhanced communication. The computer has given us the Internet. Our communication in cyberspace is not only universal but also instantaneous. Increases in the speed at which knowledge can be exchanged and the enormous capacity for storing new knowledge in cyberspace ensure that the pace of progress that we saw in the twentieth century will accelerate in the twenty-first.