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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f33_15_34037

©2013 UpToDate ® Print Email Wayson stain of Yersinia pestis Note the characteristic "safety pin" appearance of the bacteria. Reproduced from: Centers for Disease Control and Prevention. Available at: file://www.cdc.gov/ncidod/dvbid/plague/wayson.htm.