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The first radical mastectomy was done to treat breast cancer.

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Wilhelm Conrad Roentgen discovered X - rays which led to radiation.

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Radiation starts being used to treat cancer for patients.

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First time radiation was used to cure cancer in two people who had skin cancer.

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Nitrogen mustard and folic acid are discovered and help treat cancer.

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President Franklin Roosevelt establishes the National Cancer Institute.

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The main treatment for cancer in the 40s is surgery and radiation.

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In 1941 Charles Huggins discovers hormonal therapy to treat some cancers.

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Three scientists identify smoking can cause lung cancer for people.

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The first cure of a human tumor using chemotherapy happened.

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In 1958 , chemotherapy and other drugs are used together to fight leukemia for patients.

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Chemotherapy drugs begin being used regularly to treat cancer. Chemotherapy leads to remissions and cures.

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In the 1970s exploratory surgery is replaced by scans and ultrasounds.

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An important discovery was found that multiple chemotherapy drugs used together can cure some tumors. This is called combination chemotherapy.

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Small instruments and cameras are used to find and remove some tumors through natural openings in the body.