This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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There are more bacteria in your mouth than there are people in the world.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
A double bond between two oxygen atoms
Various Injection angles for insertion
The effect of a double bond on the shape of fatty acids
Hydration of a Carbon–Carbon Double Bond
How to find all angles of a triangle when only the side lengths are given