Instant Index: Vampire Therapy Research May Lead to a Breakthrough in Alzheimer's and Heart Disease

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Instant Index: Vampire Therapy Research May Lead to a Breakthrough in Alzheimer's and Heart Disease

Instant Index: Vampire Therapy Research May Lead to a Breakthrough in Alzheimer's and Heart Disease
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Instant Index: Vampire Therapy Research May Lead to a Breakthrough in Alzheimer's and Heart Disease

by ABC News Videos 1:38 mins

Diane Sawyer reveals the stories people have been buzzing about all week.

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