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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.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.