Radiation oncologist
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A radiation oncologist is a doctor who specialises in the treatment of cancer patients, using radiation as the main modality of treatment as opposed to a medical oncologist who is a doctor who uses chemotherapy as the preferred modality of treatment. In some countries, radiotherapy and chemotherapy are controlled by a single oncologist who is a "clinical oncologist".
In the United States, radiation oncologists undergo 4 years of residency (in addition to an internship). During this time they learn about oncology, the physics and biology of ionizing radiation, and the treatment of cancer patients with radiation. After completion of this training, a radiation oncologist may undergo certification by the American Board of Radiology (ABR) which includes a written test and a practical oral exam. Successfully passing these tests leads to the granting of a 10 year, time limited, board certification.
See also: radiotherapy, oncology.