![File:Spiro calibration.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Spiro_calibration.jpg/584px-Spiro_calibration.jpg)
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:37, 2 March 2010 | ![]() | 997 × 1,024 (221 KB) | Chris Capoccia | Straightened and cropped. |
20:59, 1 February 2007 | ![]() | 1,408 × 1,024 (158 KB) | Rdhara | IMCB members Ramana Dhara, Jerry Havens & Birger Heinzow calibrate a spirometer; Jan 1994 |
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