Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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ABO Blood Typing - Blood Typing

Overview & Description
Preparation & Expectations
Results and Values
Attribution
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Preparation & Expectations

What is involved in preparation for the test?

A person should request specific instructions from his or her doctor. Generally, no special preparation is required.

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