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ARS Home Office of Communications Images Photos Apr13





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Image Number D2838-2 In the Obesity and Metabolism Research Unit at Davis, California, ARS chemists John Newman and Theresa Pedersen review data from a UPLC-ESI-MS/MS system used to measure methylmalonic acid, an indicator of vitamin B12, in a blood sample.  Photo by Alison H. Keenan.  640 pixels wide: (d2838-2.jpg)   Please visit our Image Gallery


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