File:Positive.png
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Positive.png (597 × 409 pixels, file size: 34 KB, MIME type: image/png)
This includes the positive control.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:21, 2 October 2014 | | 597 × 409 (34 KB) | Romajor (Talk | contribs) | This includes the positive control. |
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