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Reference Terms
from Wikipedia, the free encyclopedia

Caffeine

Caffeine, sometimes called theine when found in tea, is a xanthine alkaloid found in the leaves and beans of the coffee tree, in tea, yerba mate, guarana berries, and in small quantities in cocoa, the kola nut and the Yaupon holly.

Note:The above text is excerpted from the Wikipedia article "Caffeine", which has been released under theGNU自由文档License.
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