File:Premarin structure.png
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![File:Premarin structure.png](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Premarin_structure.png/800px-Premarin_structure.png?20080211201941)
Size of this preview: 800 × 373 pixels. Other resolutions: 320 × 149 pixels | 640 × 299 pixels | 1,189 × 555 pixels.
Original file (1,189 × 555 pixels, file size: 16 KB, MIME type: image/png)