However, the first chronic case took place half a century ago.

然而，第一个慢性中毒病例发生在半个世纪以前。

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Seeing case after case of chronic suffering, caused by simple diseases that were treatable or preventable, was quite an eye opener.

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With regard to the last case, chronic diseases account for 47% of health care costs in the U.S., so self-care could help reduce health care costs.

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Still, many people are confused about Medicare benefits for those with chronic disease and uncertain about this case.

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