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Source: U.S. Food and Drug Administration, National Soft Drink Association, Center for Science in the Public Interest.

资料来源：美国食品和药物管理局，国家软饮料协会，公众利益科学中心。

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Known as Natural Cycle or soft IVF, it centres on single - embryo IVF treatment involving minimal drug stimulation.

以自然周期或软ivf为例，它以单胚胎ivf为中心，而且只需最小的药物刺激。

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But despite the hype, the overall economic effects of "soft addictions" pale in comparison with traditional "hard addictions" like drug abuse and alcoholism.

FORBES: The Most Expensive Addictions