As every schoolboy knows, if you drop calcium carbonate (limestone, for example) into acid, it dissolves.

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In five years the stomach acid would eat through her tooth enamel, if she didn't drop dead first.

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In LRC-CPPT, patients on cholestyramine, a bile acid sequestrant resin, had 20% lower LDL as compared to an 8% drop on placebo and, after seven years, had a 24% reduction in CV deaths versus placebo.

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