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Author Question: A young child who has been under stress begins to bite her nails. This reaction can be classified as ... (Read 30 times) |
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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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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The longest a person has survived after a heart transplant is 24 years.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.