The Chinese, who developed the technique, say that it has an effect on the body's natural energy streams.

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Pfizer (nyse: PFE - news - people ) to counteract the effect of the body's overproduction of growth hormones, that has been generating more than 90% of the school's royalty income.

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He said these social factors, combined with the effect of the disease on the body, might weaken the person's immune system.

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