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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Everyone has one nostril that is larger than the other.
Vaccines prevent between 2.5 and 4 million deaths every year.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
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