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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K9827-1

Registered nurse Earl Laih prepares to inject a pregnant volunteer with a trackable form of zinc. This method lets nutrition scientist Janet C. King (center) measure how much zinc the body uses.

Photo by Peggy Greb.



640 pixels wide: (k9827-1.jpg)




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Last Modified: 5/23/2006
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