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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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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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