Tooth enamel (IMAGE)
Caption
Scientists used samples of human tooth enamel, similar in size to these samples of wolf tooth enamel, to examine two immune proteins: immunoglobulin G and C-reactive protein.
Credit
Photo courtesy of Tammy Buonasera
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Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.
License
CC BY-NC-ND