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Original file ‎(1,650 × 1,275 pixels, file size: 1.82 MB, MIME type: application/pdf, 57 pages)

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Description
English: NIH standard handbook for sleep scoring in accordance with the sleep scoring system established by Nathaniel Kleitman and William C. Dement
Date
Source U.S. Govenment
Author Allan Rechtschaffen & Anthony Kales

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Public domain
This image is a work of the Centers for Disease Control and Prevention, 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.

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Date/TimeThumbnailDimensionsUserComment
current15:43, 14 January 2012Thumbnail for version as of 15:43, 14 January 20121,650 × 1,275, 57 pages (1.82 MB)Al.bo64 (talk | contribs)

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