Word: tumor
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Dates: during 1990-1999
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...past five years, scientists have studied several different genes thought to be related to breast cancer. If several genes can be identified as positively correlated to breast cancer incidence, doctors can then screen women and identify those high-risk women who possess the genes before a tumor has actually formed...
Clinical studies involve developing better methods of screening women to determine whether or not a tumor is present and treating those who test positive accordingly...
Unfortunately, physicians are able to characterize only a fraction of breast cancer patients as belonging to the "high risk" category before a tumor is actually identified...
Since it is difficult to predict who will develop a tumor, doctors must develop methods by which to identify a growth in its early stages. This identification is extremely important in determining the success of treatment...
Angiogenesis is directly linked to tumor growth, says Folkman, by the fact that growth is limited by a finite number of blood vessels. Until new blood vessels are formed, a tumor cannot increase dramatically in size...