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Summary
| Description |
English: A negative niacin test on the left, a positive niacin test on the right. |
| Date | |
| Source | Tuberculosis 2007, page 418 |
| Author | A. Martin |
"No copyright is allocated"
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:33, 10 November 2016 | | 149 × 221 (39 KB) | Icebob99 | User created page with UploadWizard |
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