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File:Nci-vol-8196-300 alfred knudson.jpg

原始檔案 ‎（2,119 × 2,697 像素，檔案大小：586 KB，MIME 類型：image/jpeg）

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English: Title: Historical Portrait: Alfred Knudson

Description: Historical Portrait of Alfred Knudson. Subjects (names): Knudson, Alfred Topics/Categories: Historical -- People People -- Professional Type: B&W Source: General Motors Author: Unknown Date Created: Unknown Date Added: 2/26/2010

Reuse Restrictions: None - This image is in the public domain and can be freely reused. Please credit the source and/or author listed above.
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National Cancer Institute,

This image was released by the National Cancer Institute, an agency part of the National Institutes of Health, with the ID 8196 (image) (next).

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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作者 Unknown, donated by General Motors
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(重用此檔案)
Public domain 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.
此作品無已知的著作權限制，亦不受所有相關和鄰接的權利限制。

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艾爾弗雷德·克努森 中文 (已轉換拼寫)

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目前2010年5月23日 (日) 02:01於 2010年5月23日 (日) 02:01 版本的縮圖2,119 × 2,697（586 KB）Oaktree b{{Information |Description={{en|1=Title: Historical Portrait: Alfred Knudson Description: Historical Portrait of Alfred Knudson. Subjects (names): Knudson, Alfred Topics/Categories: Historical -- People People -- Professional Type: B&W Source: Gen

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