File:External beam radiotherapy retinoblastoma nci-vol-1924-300.jpg

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描述	English: This is Gordon Isaacs, the first patient treated with the linear accelerator (radiation therapy) for retinoblastoma in 1957. Gordon's right eye was removed January 11, 1957 because the cancer had spread. His left eye, however, had only a localized tumor that prompted Henry Kaplan to try to treat it with the electron beam. Gordon is now living in the east bay, and his vision in the left eye is normal.
日期	1957年
來源	National Cancer Institute via Stanford University, image number AV-5700-3472
作者	Unknown photographer/artist

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	This image is a work of the National Institutes of Health, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain. Please ensure that this image was actually created by the US Federal government. The NIH frequently uses commercial images which are not public domain.
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目前	2008年12月27日 (六) 19:37		1,800 × 2,354（739 KB）	Stevenfruitsmaak	{{Information \|Description={{en\|1=This is Gordon Isaacs, the first patient treated with the linear accelerator (radiation therapy) for retinoblastoma in 1957. Gordon's right eye was removed January 11, 1957 because the cancer had spread. His left eye, how

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