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Through their research into cancer, scientists have finally discovered the causes of the disease and suggested various forms of treatment. |
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For many years, scientists have carried out much research into different types of cancer and are now able to discuss them fully. |
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It has taken a long time for scientists to find out about various kinds of cancer and suggest different methods of treatment. |
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For many years, cancer research has been a serious concern for researchers, who are now able to explain the causes of this disease. |
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Those who are involved in cancer research have, over time, come to know much about the ways and causes of the disease's development. |