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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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Medication errors are three times higher among children and infants than with adults.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.