Cancer patients require radiation therapy apart from chemotherapy. External Radiation is a method of sending high energy rays to the target organ threw the skin with the help of a machine. The duration and dose of radiation varies according to the type and place of cancer, other drugs that are used, age etc. some methods of external radiation are Three-dimensional conformal radiation therapy, Intensity modulated radiation therapy, Conformal proton beam radiation therapy.
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Last date updated on September, 2014