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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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